Troubleshooting KumaScript errors

This article details the four types of KumaScript error, and some steps you can take to fix them.


DocumentParsingError errors appear when KumaScript has trouble understanding something in the document itself. The most common cause is a syntax error in a macro.

Check for:

Use of curly braces without intending to call a macro.

If you need to write { in a document without calling a macro you can escape it with a \ like this: \{

Use of a special character in a macro parameter.

If you need to use a " or a \ inside of a macro parameter they can be escaped with a \ like this: \\ or \"

Missing commas between macro parameters.

Macro parameters need to be delimited by a comma (,) but not at the end of the list of parameters; for example {{compat("", 2)}}.

HTML tags appearing inside a macro call

If you apply styling to a macro, it will often break because, for example, a </code> tag may have appeared inside the macro code in the source code. Check the source view to see what's there, and remove any unnecessary styling.


TemplateLoadingError errors appear when KumaScript has trouble finding which macro to include on a page.

Check for:

Misspelling of macro names or renamed macros.

You can look at the list of active macros in the Yari repo.


TemplateExecutionError errors appear when KumaScript encounters an error in the macro. If the error persists, report an issue, including the URL of the page and the text of the error.

Error & Unknown

This is the category errors end up in if they are not one of the other kinds of error.