TypeError - Cannot call method 'toLowerCase' of undefined

[ghost]

I have been primarily using the web editor, so I am not sure what would cause this particular error. The first chapter of my book failed to build.

--Output dump--

Downloading source Extracting source GitBook version is 2.6.3 Tweaking book.json Installing plugins info: 2 plugins to install info: No version specified, resolve plugin comment info: install plugin comment from npm (gitbook-plugin-comment) with version 0.2.0 gitbook-plugin-comment@0.2.0 node_modules/gitbook-plugin-comment info: >> plugin comment installed with success info: No version specified, resolve plugin autocover info: install plugin autocover from npm (gitbook-plugin-autocover) with version 1.2.1 info: >> plugin autocover installed with success

Done, without error Building Site, will upload info: loading book configuration....OK info: load plugin gitbook-plugin-comment ....OK info: load plugin gitbook-plugin-autocover ....OK info: load plugin gitbook-plugin-highlight ....OK info: load plugin gitbook-plugin-search ....OK info: load plugin gitbook-plugin-sharing ....OK info: load plugin gitbook-plugin-fontsettings ....OK info: >> 6 plugins loaded info: start generation with website generator info: clean website generatorOK

TypeError: Cannot call method 'toLowerCase' of undefined Please report this to https://github.com/GitbookIO/kramed. (In file 'README.md')

[ghost]

Welp. I reran the building process and there were no further errors. This issue can be closed.

[AaronO]

@pun-isher Yep, I accidentally introduced that regression in kramed's 0.5.4 release last night and fixed it early this morning in the 0.5.5 release: https://github.com/GitbookIO/kramed/commits/master

Sorry for the inconvenience, but it should all be good now :)