On Nov 15, 2017, at 10:19 PM, Allan Odgaard <mailinglist@textmate.org> wrote:

I am not yet on 10.13.1 so I don’t know what the issue is, however, as the error is from erb which is being used with this template https://github.com/textmate/textmate/blob/master/Applications/TextMate/about/Contributions.md then I assume that erb changed rules about “escaping”.

There are erb tags that use both % and <<. The former is used in the documentation for erb, so I think more likely it’s the latter that is causing the problem.

Can you try edit the above mentioned file to avoid << and see if it helps?