dartdoc on pub failed with unhandled exception

[Zekfad]

URL: https://pub.dev/packages/nhentai/score

I've build docs locally without problems, but pub.dev version fails with unhandled exception.
Not sure if its bug with dartdoc or pub.dev version of dartdoc though.

Log from the site

exitCode: 255
stdout: [2023-01-29T18:46:29.263278] Starting...
Documenting nhentai...
Initialized dartdoc with 263 libraries
Generating docs for library nhentai from package:nhentai/nhentai.dart...
Generating docs for library nhentai_before_add_cookies from package:nhentai/befo[...]
Generating docs for library nhentai_functions from package:nhentai/functions.dart...
Generating docs for library nhentai_data_model from package:nhentai/data_model.dart...
Generating docs for library nhentai_data_model_prefixed from package:nhentai/dat[...]
Generating docs for library nhentai_prefixed from package:nhentai/nhentai_prefix[...]

stderr: Unhandled exception:
Null check operator used on a null value
#0      ModelElement.parameters.<anonymous closure> (package:dartdoc/src/model/m[...]
#1      ModelElement.parameters (package:dartdoc/src/model/model_element.dart:895:4)
#2      ModelElement.parameters (package:dartdoc/src/model/model_element.dart)
#3      FunctionTypedef.referenceChildren (package:dartdoc/src/model/typedef.dart:133:31)
#4      CommentReferable.referenceBy (package:dartdoc/src/model/comment_referabl[...]
#5      _getMatchingLinkElement (package:dartdoc/src/markdown_processor.dart:226:30)
#6      getMatchingLinkElement (package:dartdoc/src/markdown_processor.dart:238:16)
#7      MarkdownDocument._makeLinkNode (package:dartdoc/src/markdown_processor.d[...]
#8      new MarkdownDocument.withElementLinkResolver.<anonymous closure> (packag[...]
#9      LinkSyntax._resolveReferenceLink (package:markdown/src/inline_syntaxes/l[...]
#10     LinkSyntax._tryCreateReferenceLink (package:markdown/src/inline_syntaxes[...]
#11     LinkSyntax.close (package:markdown/src/inline_syntaxes/link_syntax.dart:89:12)
#12     InlineParser._linkOrImage (package:markdown/src/inline_parser.dart:158:31)
#13     InlineParser.parse (package:markdown/src/inline_parser.dart:114:9)
#14     MarkdownDocument._parseInlineContent (package:dartdoc/src/markdown_proce[...]
#15     MarkdownDocument._parseInlineContent (package:dartdoc/src/markdown_proce[...]
#16     MarkdownDocument.parseMarkdownText (package:dartdoc/src/markdown_process[...]
#17     Documentation._parseDocumentation (package:dartdoc/src/model/documentati[...]
#18     Documentation._renderDocumentation (package:dartdoc/src/model/documentat[...]
#19     Documentation.asOneLiner (package:dartdoc/src/model/documentation.dart:54:5)
#20     ModelElement.oneLineDoc (package:dartdoc/src/model/model_element.dart:816:49)
#21     _deduplicated_lib_templates_html__typedef_html (package:dartdoc/src/gene[...]
#22     _renderLibrary_partial_typedef_10 (package:dartdoc/src/generator/templat[...]
#23     renderLibrary (package:dartdoc/src/generator/templates.aot_renderers_for[...]
#24     HtmlAotTemplates.renderLibrary (package:dartdoc/src/generator/templates.[...]
#25     GeneratorBackendBase.generateLibrary (package:dartdoc/src/generator/gene[...]
#26     GeneratorFrontEnd._generateDocs (package:dartdoc/src/generator/generator[...]
#27     GeneratorFrontEnd.generate (package:dartdoc/src/generator/generator_fron[...]
#28     Dartdoc.generateDocsBase (package:dartdoc/src/dartdoc.dart:178:21)
<asynchronous suspension>
#29     Dartdoc.generateDocs (package:dartdoc/src/dartdoc.dart:220:24)
<asynchronous suspension>
#30     pubDartDoc (package:pub_dartdoc/pub_dartdoc.dart:32:19)
<asynchronous suspension>
#31     main (file:///project/pkg/pub_dartdoc/bin/pub_dartdoc.dart:7:52)
<asynchronous suspension>

[isoos]

pub.dev is on dartdoc 6.1.1 and the exception happens in that version. We can't upgrade to 6.1.5 yet for various reasons right now, but once a new dartdoc release happens, we may upgrade and the issue will be fixed on our side (no need for new release, we will re-generate the docs).