Diagnostic codes

Every code keeps its level; renaming or removing one is a format change.

Code	Level	Line	Meaning	Fix
`source.limit`	error		The source exceeds the 16 MiB limit.	Split the report or shrink its inline data below 16 MiB.
`frontmatter.yaml`	error	yes	The frontmatter is not YAML.	Rewrite the frontmatter between the — lines as valid YAML.
`block.yaml`	error	yes	A rich block’s YAML is not YAML.	Align sibling keys at the same indentation, indent nested fields consistently, and use `key: value` mappings.
`yaml.unsupported`	error	yes	The YAML uses a feature outside the RichView profile, such as anchors, tags or several documents.	Remove anchors, aliases, tags and extra documents; write plain YAML.
`yaml.duplicate-key`	error	yes	A mapping repeats a key.	Delete or rename the repeated key so each key appears once per mapping.
`frontmatter.type`	warning	yes	A frontmatter field has the wrong type and is dropped.	Give the field a value of the type the message names, or remove it.
`frontmatter.mapping`	error	yes	Closed frontmatter is not a mapping, so the title block cannot be read.	Write the frontmatter as a YAML mapping, such as `title: A report`, or remove its delimiters to render it as body text.
`frontmatter.unknown-key`	warning	yes	A frontmatter key the registry does not know; it stays in the metadata with no effect.	Remove the key, or rename it to the known key the message names.
`frontmatter.unclosed`	warning	yes	The frontmatter has no closing line, so it is rendered as Markdown.	Close the frontmatter with a `---` line after its last key.
`frontmatter.version`	warning	yes	The version is not semver-shaped and is dropped.	Use a quoted semantic version such as `version: "1.0.0"`; remove literal backslashes around the quotes.
`frontmatter.renamed`	error	yes	A frontmatter key the format retired; the fix names its replacement.	Replace the retired frontmatter key with the replacement the message names.
`frontmatter.date`	warning	yes	The date is not YYYY-MM-DD or RFC 3339; it renders as written.	Use an ISO date such as `date: 2026-10-30`, or an RFC 3339 date-time such as `date: 2026-10-30T08:00:00Z`.
`frontmatter.lang`	warning	yes	The language is not a supported locale; the page language is set but formatting stays English.	Set `lang` to `en`, `en-GB`, `cs`, `de` or `ja` to print numbers in that language’s format; any other tag only names the page language.
`frontmatter.format`	error	yes	The format marker is not rmd/, or names a newer major version than this renderer reads.	Set `format: rmd/<major>` to a major version this renderer reads.
`frontmatter.tabs`	warning	yes	The tabs setting is malformed, so the body renders without tabs.	Write `tabs` as a mapping whose `panels` give each tab a unique `id`, a `label` and the heading anchor it starts `from`.
`frontmatter.data`	error	yes	Report header data is no longer supported; data belongs in each block.	Remove the header data and give each block its own `data` source.
`publish.metadata`	error		Publishing needs a title, a description and a version.	Add a title, a description and a version to the frontmatter.
`block.type`	error	yes	A rich block is not a YAML mapping.	Make the block’s YAML a mapping of keys to values.
`block.schema`	error	yes	A block field is missing or has the wrong type or value.	Give the field the value the message asks for; `richview learn` lists each block’s fields and their types.
`block.field`	error	yes	A field reference names a column the block’s data does not have.	Name a column that exists in the block’s data, or add that column.
`block.renamed`	error	yes	A block key, tag or value the format retired; the fix names its replacement.	Replace the retired key, tag or value with the replacement the message names.
`block.unknown-key`	warning	yes	A block key the registry does not know; it is dropped before rendering.	Remove the key, or rename it to the known key the message names.
`schema.invalid`	error		A value fails the public schema parse.	Fix the value so it matches the public schema for that field.
`data.local`	error	yes	A block does not define exactly one local data source, or uses a header id or remote address.	Keep exactly one `data` source (`inline`, `csv`, `json`, `url`, `sql`, `metricflow` or `cache`) and remove the others.
`data.unresolved`	error	yes	A block’s data file was not resolved before rendering.	Resolve the data file before rendering, or render through the CLI or host.
`data.limit`	error	yes	A resolved dataset exceeds 16 MiB.	Reduce the dataset below 16 MiB by filtering rows or dropping columns.
`data.csv`	error	yes	A CSV dataset cannot be read.	Repair the CSV so it parses: consistent columns, valid quoting, UTF-8.
`data.csv.header`	error	yes	A CSV dataset’s headers are empty or repeat.	Give every CSV column a non-empty, unique header.
`data.inline`	error	yes	Inline rows are not flat row mappings.	Write inline data as a list of flat row mappings, one value per key.
`frontmatter.slug`	warning	yes	The slug is not valid, so publishing fails until it is fixed.	Write `slug` as 1 to 80 characters of a-z, 0-9 and single hyphens, with no hyphen at either end, such as `q3-sales`.
`publish.slug`	error		The slug is not valid for publishing.	Use a slug of lowercase letters, digits and hyphens.
`publish.version-exists`	error		This version is already published with different content.	Bump the version, or publish content identical to the existing one.
`publish.version-deleted`	error		This version was deleted and its number cannot be published again.	Publish under a new, higher version number.
`publish.version-missing`	error		The pinned version is not published for this report.	Pin a version that is published for this report, or drop the pin.
`publish.new-slug`	error		This report address is new and needs --new to be created.	Pass --new to create this report address, or correct the slug.
`publish.slug-derived`	warning		The slug was derived from the title because the frontmatter has none.	Add a `slug` to the frontmatter so the report keeps its address when its title changes.
`publish.quota`	error		Publishing would exceed the storage quota.	Delete old versions or shrink the report to fit the storage quota.
`data.json`	error	yes	A JSON dataset is not an array of row mappings.	Make the JSON file an array of flat row mappings.
`data.provenance`	info	yes	A connector query was run and its result stands in for the block’s data.	Nothing to change; this records which connector query supplied the block’s data.
`data.cache.stale`	warning	yes	A cached snapshot exceeded its freshness limit; the reader’s data-source note marks it stale.	Run the query again to refresh the snapshot, or keep it; the reader’s source note says it is stale.
`data.connector.unknown`	error	yes	A data block names a connector that is not registered.	Use a registered connector name, or register the connector first.
`data.connector.rejected`	error	yes	A connector refused the query.	Correct the query or its parameters to what the connector accepts.
`data.connector.failed`	error	yes	A connector failed while running the query.	Check the connector’s access and the query, then run it again.
`data.connector.io`	error	yes	A connector hit a file error.	Check that the connector’s file exists and is readable.
`data.cache.miss`	error	yes	A data block references a cached result that does not exist.	Run the query again to fill the cache, or remove the cached reference.
`image.credit-missing`	error	yes	An Unsplash photo has no credit, so the block stays source.	Add the photographer’s credit to the Unsplash image.
`image.credit-invalid`	error	yes	An Unsplash photo’s credit breaks the rules, so the block stays source.	Fix the Unsplash credit to follow the credit rules.
`image.credit-incomplete`	warning	yes	An optional image credit has no non-empty author, so no credit is shown.	Give `credit.author` the creator’s name, or remove `credit`.
`image.credit-url`	warning	yes	A credit link is not an http(s) address, so the name is not linked.	Make the credit’s `author_url` and `source_url` http or https addresses, or remove them.
`image.color-invalid`	warning	yes	An image color is not #rrggbb and is dropped.	Write `color` as a `#rrggbb` hex colour, such as `#1f6feb`, or remove it.
`security.media`	warning	yes	An audio or video source was blocked as unsafe.	Use an audio or video file in the report folder, or a `data:` URI of an audio or video type.
`security.embed`	error	yes	An embed was blocked because its URL is not https, carries credentials or names a host that is not allowed.	Use an https embed URL on an allowed host.
`export.video-poster`	warning	yes	A video has no poster, so the PDF prints a text card.	Add a `poster` image from the report folder so the PDF shows a frame of the video.
`assets.external-reference`	info	yes	The report needs an external file that is not embedded.	Generate the report with `richview generate`, which embeds the report folder’s files, so it needs nothing beside it.
`assets.network-dependent`	info	yes	The report needs network access to load an asset.	Nothing to change if readers are online; offline, the photo or embed does not load and its placeholder shows.
`markdown.math`	warning		Math could not be rendered.	Correct the TeX the message quotes, or write the formula as plain text.
`security.html`	warning		Unsafe raw HTML was removed.	Write the content in Markdown or a rich block; raw HTML never renders.
`security.image`	warning		A Markdown image protocol was blocked.	Use an image file in the report folder or a `data:` image URI.
`security.link`	warning		A Markdown link protocol was blocked.	Link to an http(s), mailto or tel address, a # anchor or a file in the report folder.
`asset.mapping`	error		A remote asset reference is not a mapping.	Write the remote asset as a mapping with url, bytes, sha256 and type.
`asset.unknown-key`	warning		A remote asset reference has a key it does not take.	Remove the key; the message lists the keys a remote asset reference takes.
`asset.url`	error		A remote asset reference has a missing or unusable url.	Set a valid https `url` on the remote asset.
`asset.presigned`	error		A remote asset url carries a signing parameter.	Use a stable public URL without signing parameters.
`asset.bytes`	error		A remote asset reference lacks a valid byte size.	Set `bytes` to the asset’s exact size as a positive integer.
`asset.sha256`	error		A remote asset reference lacks a valid SHA-256.	Set `sha256` to the asset’s 64-character hex digest.
`asset.type`	error		A remote asset reference has a media type its use does not allow.	Set a media type that this use of the asset allows.
`asset.visibility`	error		A remote asset reference is neither public nor private.	Set `visibility` to public or private.
`asset.duration`	error		A remote asset’s duration is invalid or does not apply.	Set a valid positive `duration`, or remove it where it does not apply.
`asset.dimensions`	error		A remote asset’s width or height is invalid or does not apply.	Set valid positive `width` and `height`, or remove them where they do not apply.
`style.unresolved`	error		A styles file is not in the report folder.	Put the styles file inside the report folder and name it correctly.
`style.renamed`	error		A style names a builtin that was renamed.	Replace the style name with the one the message names.
`style.print-dark`	warning		The style is still dark after the print swap, so the page prints with Air’s surfaces and inks.	Give the style light surfaces and dark inks to print in its own colours; otherwise paper uses Air’s.
`style.unknown`	error		A styles entry names no built-in style.	Use a built-in style name, or a styles file in the report folder.
`style.type`	warning		A style file is not a YAML mapping.	Write the style file as a YAML mapping of style keys to values.
`style.retired`	warning		A style leaf is retired and ignored.	Remove the retired leaf; the message says why it no longer applies.
`style.schema`	warning		A style leaf is invalid.	Give the leaf a value of the type the message names, or remove it.
`style.company-adjusted`	info		The brand colour was adjusted to meet the contrast floor.	Keep the adjusted colour for legibility or choose a brand colour with enough contrast.
`style.company-secondary`	info		The secondary brand colour was too similar for the chart palette.	Choose a second colour that is distinguishable from the first, or keep the derived palette.
`style.company-palette`	warning		A distinct brand palette could not be derived.	Choose another brand colour or supply a checked explicit palette.
`style.company-color`	warning		A company colour is translucent or unresolved.	Use an opaque concrete colour such as #0B6E69.
`style.properties`	error		Custom style properties are invalid.	Fix the custom style properties to the documented names and values.
`style.fonts-unavailable`	warning		The host has no bundled fonts, so text falls back to system fonts.	Generate the report with the CLI, which embeds the bundled fonts.
`style.unknown-key`	warning		A style leaf is not in the style vocabulary and is skipped.	Remove the leaf, or rename it to the style key the message names.
`style.experimental`	warning		A style leaf is experimental: it can break the layout in ways nobody expects.	Remove the leaf, or keep it only after checking the report at phone and desktop widths.
`style.internal`	warning		A style leaf fixes the page’s mechanics and is ignored.	Remove the leaf; the page sets it itself.
`style.contrast`	warning		A style colour is below its contrast floor on a surface.	Darken or lighten the colour until it reaches the floor the message names on that surface.
`style.type-scale`	warning		Two neighbouring type sizes are closer than the minimum ratio.	Move the two sizes apart until each step is at least the ratio the message names.
`style.weights`	warning		The style embeds more than three font weights.	Use at most three font weights across the style.
`style.font-missing`	warning		A declared font family has no bundled face and no file in the report folder.	Add the font’s files to the report folder, or choose a bundled family.
`style.glyph-missing`	warning		Characters of the report fall outside the faces the style embeds.	Choose a face that covers these characters, or add one to the report folder that does.
`options.style`	error		The render options’ styles are not an ordered array of style references.	Pass the render options’ styles as an ordered array of style references.
`options.width`	error		A chart width is non-finite or outside 240 to 4096.	Set every chart width to a finite number from 240 through 4096.
`render.output.invalid`	error		The render output option is invalid.	Set the output option to a value the renderer accepts.
`render.page.invalid`	error		The render page option is invalid.	Set the page option to a value the renderer accepts.
`render.output-limit`	error		The generated report exceeds the 64 MiB HTML limit.	Shrink the report’s data, images or charts below the 64 MiB HTML limit.
`assets.runtime-external`	info		The preview loads the chart runtime from outside the report.	Nothing to change in a preview; `richview generate` embeds the runtime for offline readers.
`security.id`	warning	yes	A heading id or footnote label reserved for the report runtime was dropped or renamed.	Choose an id or label that does not start with rv, richview, tab- or panel-.
`security.class`	warning	yes	Heading classes and attributes from source were dropped.	Remove the classes and attributes from the heading, keeping only `{#id}`.
`image.alt-missing`	warning		The header image has no alt text, so it is treated as decorative.	Describe the image in `alt`, or write `alt: ""` to mark it decorative.
`editor.service`	error		The editor service could not answer a request.	Retry the request; restart the editor service if it keeps failing.
`block.nested`	error	yes	A rich block sits inside a list, quote or note.	Move the rich block out of the list, quote or note to the top level.
`block.unknown-tag`	warning	yes	A fence names no rich tag; a close match is suggested.	Change the fence tag to the rich tag the message suggests, or keep the fence as code.
`callout.title`	warning	yes	A callout has no title, so colour alone carries the finding.	Add a `title` that names the finding.
`block.source`	warning		A chart or table has no source note directly after it.	Add a source note directly after the block, such as Source: data/sales.csv., and name synthetic data as such.
`table.title`	info		A table has no title or accessible name.	Add a `title` that names the table’s subject.
`image.context`	info		The header image has neither a caption nor a credit.	Add a `caption` or a `credit` to the header image.
`markdown.heading-id`	warning	yes	An explicit heading id is not named by a tab panel and is ignored.	Name the anchor in a tab panel’s `from`, or remove the `{#id}`.
`markdown.table-header`	warning	yes	A Markdown table repeats a column header, making its columns ambiguous.	Give each table column a distinct header.
`table.markdown`	info		An inline table cell contains Markdown syntax and is shown as written.	Write the cell as plain text, or use a Markdown table in the prose when cells need emphasis or links.
`media.captions`	info		A video has no captions file.	Add `captions` with a WebVTT file from the report folder.
`media.transcript`	info		An audio or video block has no transcript file.	Add `transcript` with a text or Markdown file from the report folder.
`markdown.footnote`	warning	yes	A footnote reference has no definition and shows as text.	Add the footnote’s definition, `[^label]: text`, or remove the reference.
`markdown.heading-depth`	warning	yes	A sixth-level heading cannot move below the page title and stays at level 6.	Use at most five heading levels, with # for the top level.
`markdown.quote`	warning	yes	The pull-quote marker is not supported and shows as text.	Write the quotation as a block quote and end it with — Name.
`markdown.wikilink`	warning	yes	A wikilink is not supported and its label shows as text.	Write a Markdown link, `text`, in place of the wikilink.
`render.failed`	error		The report could not be rendered.	Fix the errors reported with this one and render again.
`style.sink`	error		A style value holds characters the CSS output refuses.	Remove quotes, braces, semicolons and other CSS-breaking characters from the style value.
`table.total`	warning	yes	A table total skips columns it cannot sum.	List the columns to sum, such as `total: [accounts, revenue]`.
`security.runtime-url`	warning		The chart runtime address is not allowed.	Use the embedded runtime, or a root-relative path or an https base without credentials, query or fragment.
`tabs.anchor-missing`	warning		A tab panel’s anchor is not in the body, so the body renders without tabs.	Give the body a heading with the panel’s anchor, such as `## Costs {#costs}`, or correct the panel’s `from`.
`tabs.order`	warning		Tab anchors are not distinct and in document order, so the body renders without tabs.	List the panels in the order their headings appear, each starting from a different anchor.
`chart.invalid`	error	yes	A chart block could not be read.	Fix the chart block’s fields to match the chart schema.
`chart.failed`	error	yes	A chart failed to draw.	Check the chart’s data and encodings, then fix the errors reported with it.
`chart.states-unchecked`	warning	yes	Only the first reader states of a chart were checked.	Nothing to change if the checked states are typical; fewer control values let every state be checked.
`chart.aggregation`	info	yes	The chart aggregates rows before drawing.	Nothing to change if means and ranges are intended; choose `style.points: all` to draw every observation, accepting its rendering cost.
`chart.decimation`	info	yes	The chart draws representative positions for several observations and reports the kept and total counts.	Nothing to change if reduction is intended; choose `style.points: all` to draw every observation, accepting its rendering cost.
`chart.ambiguous-bar-slot`	error	yes	Several numeric rows share a bar category and series.	Aggregate the data so each category and series has one row.
`chart.ambiguous-missing-cell`	error	yes	Missing heatmap observations repeat an existing coordinate.	Remove the duplicate missing-value rows so each x and y appears once.
`chart.ambiguous-numeric-cell`	error	yes	Several numeric rows share a heatmap coordinate.	Aggregate the data so each x and y coordinate has one row.
`chart.binning`	info	yes	The histogram’s bins and measure, with the observations they hold.	Nothing to change; set `binning.count` or `binning.edges` to choose other bins.
`chart.boxplot-summary`	info	yes	How the box plot was summarised: quartiles, whiskers and outliers.	Nothing to change; this records how the boxes and whiskers summarise the data.
`chart.clipped-interval`	warning	yes	Axis bounds clip supplied intervals or estimates.	Widen `axes.y.min` and `axes.y.max` to cover every interval, or remove them.
`chart.clipping`	warning	yes	A label exceeds the chart’s viewport.	Shorten the text or give the chart more room.
`chart.collapsed-interval`	warning	yes	An interval has equal bounds and collapses to a point.	Check the row’s bounds; an interval narrower than the chart can show is drawn as a point.
`chart.contrast`	warning	yes	Chart text falls below 4.5:1 contrast on the chart surface.	Darken or lighten the ink token the message names.
`chart.empty-data`	error	yes	The chart has no rows to draw.	Give the chart at least one data row, or remove the chart.
`chart.empty-region`	warning	yes	The plot draws nothing.	Check that the data has values in the encoded fields and that not every series is hidden.
`chart.missing-observations`	info	yes	Some rows have no value and are drawn as gaps.	Nothing to change if the values are missing; fill them in the data to draw them.
`chart.excluded-observations`	warning	yes	Some observations were left out of the chart.	Give every row the values the message names, or remove the rows.
`chart.histogram`	error	yes	The histogram options or data are invalid.	Use a numeric field with valid bin options and non-empty data.
`chart.invalid-bubble-size`	error	yes	Bubble sizes are negative or not numbers.	Make every bubble size a non-negative number.
`chart.invalid-color-values`	error	yes	Heatmap colour values are neither numbers nor recognised missing values.	Make the colour field numeric, or leave missing values empty.
`chart.label-collision`	warning	yes	Two labels overlap.	Shorten the labels or widen the chart.
`chart.label-dropped`	info	yes	A label was left out for lack of room.	Nothing to change; shorter labels or a wider chart show more of them.
`chart.label-thinned`	info	yes	Only some category names are shown.	Nothing to change; shorter category names or a wider chart show more of them.
`chart.label-unfit`	warning	yes	A label does not fit at this width.	Shorten the names, or give the chart more room.
`chart.missing-bubble-size`	warning	yes	Some observations have no size, so their bubbles are omitted.	Give the row a size value, or remove the row.
`chart.missing-color-values`	error	yes	The heatmap’s colour field has no numeric values.	Give the heatmap’s colour field at least one numeric value.
`chart.negative-pie-value`	error	yes	A pie slice has a negative value.	Make every pie value zero or positive.
`chart.non-numeric`	error	yes	A value that must be a number is not.	Make the field a number: remove units, text and thousands separators.
`chart.limit-exceeded`	error	yes	The chart has more of something than its type takes; nothing is dropped, so it is not drawn.	Filter or aggregate the rows to fit the limit named in the message, or choose a chart type that takes more.
`chart.palette-rule`	warning	yes	The palette fails its rule on this chart, so patterns tell series apart.	Pick a palette whose colours differ more, or keep the patterns.
`chart.points-overlap`	info	yes	Points overlap because their strips are too narrow to spread them.	Widen the chart, filter the data, or facet it.
`chart.series-differentiation`	warning	yes	More than eight series reuse colour slots.	Show fewer series, or split the chart into facets with `encoding.facet`.
`chart.source-error`	error	yes	A source value cannot be represented.	Replace the unreadable source value with a plain number or text.
`chart.style-invalid`	warning	yes	A chart style setting has a value the type cannot use, so its default applies.	Give the style setting a value this chart type uses, or remove it.
`chart.too-few-observations`	warning	yes	A group has too few distinct values for the chart to draw it.	Give the group at least two different values, or leave it out.
`chart.unlocated-color-values`	error	yes	Heatmap colour values lack x or y coordinates.	Give every heatmap row both an x and a y value.
`chart.unresolved-annotation`	warning	yes	An annotation’s coordinates do not resolve against the chart.	Place the annotation at values inside the chart’s data range.
`chart.unresolved-highlight`	warning	yes	A highlighted value matches no row.	Match the highlighted value to one in the data, checking its spelling.
`chart.value-overflow`	error	yes	A total exceeds the finite numeric range.	Use smaller values or rescale the data so totals stay finite.
`report.root.missing`	error		No dedicated report folder, or its source is missing.	Put the report in its own folder with a single .rmd source.
`report.root.invalid`	error		The report root or source name is invalid.	Use a valid report folder and a valid .rmd source name.
`report.root.escape`	error		A report path escapes the report folder or is ambiguous.	Keep every report path inside the report folder, without .. or links.
`report.root.shared`	error		The report folder holds duplicate paths or several .rmd sources.	Remove duplicate paths and keep one .rmd source per report folder.
`report.root.unresolved`	error		The report folder cannot be inspected.	Check that the report folder exists and is readable.
`scrolly.state`	warning	yes	A scrollytelling step sets a chart control or option the chart does not have.	Use a control id and option value from the chart’s `controls`.
`chart.print-height`	warning	yes	A chart is taller on paper than the share of the page it may take.	Show fewer rows or categories, or give the chart a wider `style.ratio`, such as `16:9`, so it prints shorter.
`report.asset.remote`	error	yes	An image, audio, video, poster, header image or Markdown image names a remote address.	Download the file into the report folder and reference it by relative path.
`report.asset.escape`	error	yes	An asset path escapes the report folder.	Move the asset into the report folder and reference it by relative path.
`report.asset.missing`	error		An asset is missing from the report folder.	Add the missing asset to the report folder or correct its path.
`report.output.escape`	error		The output path escapes the Rendered folder.	Write output inside the Rendered folder, without .. in the path.
`report.output.invalid`	error		The output file name is not allowed.	Use an allowed output file name with a plain relative path.
`report.output.collision`	error		An authored asset collides with a generated output.	Rename the authored asset so it does not match a generated output.
`report.output.runtime`	error		The interactive chart runtime is missing, so the report cannot be exported.	Build the chart runtime first, or export without interactive charts.
`export.browser-missing`	error		No Chromium-based browser was found for PDF export.	Install a Chromium-based browser or point the export at one.
`export.platform`	error		PDF export is not supported on this platform.	Export the PDF on a supported platform, or use the HTML report.
`export.browser-failed`	error		The browser failed while printing.	Retry the export; check that the browser starts and can print.
`export.settle-timeout`	error		The report did not settle before the timeout.	Retry the export, or reduce the report’s charts and images.
`export.image-failed`	error		Images could not be decoded for printing.	Replace the undecodable images with valid PNG, JPEG or SVG files.
`export.browser-version`	warning		The browser is older than the supported Chrome version.	Use a current Chromium, Google Chrome or Microsoft Edge.
`export.photo-unavailable`	warning		A photo could not be loaded while printing.	Check that the photo’s address loads, then export again.
`export.font-fallback`	warning		Glyphs were drawn in a system font instead of the embedded ones.	Choose a style whose faces cover these characters, then export again.
`export.pdf-untagged`	warning		The PDF has no tags or outline.	Export with a current Chromium, Google Chrome or Microsoft Edge, which writes PDF tags and an outline.
`export.network-blocked`	warning		The report requested an address while printing that PDF output does not load.	Put the file in the report folder so the report embeds it, then export again.
`export.local-link`	info		A link to a report file prints as text.	Nothing to change; link to a public address if PDF readers should open the file.
`export.font-check`	info		The font check did not complete.	Export again; until the check completes, the PDF may depend on this machine’s fonts.
`export.browser-sandbox`	info		Chrome printed with its sandbox off because RichView runs as root.	Run RichView as an ordinary user so Chrome prints inside its sandbox.
`resource.resolve`	error		A report resource could not be resolved.	Check that the resource exists in the report folder and is readable.
`authoring.key`	warning		A key is not used by the block.	Remove the key, or move it to where the block reads it.
`authoring.field`	error		A key names a data field that does not exist.	Use a field name that exists in the data.