TypeError (no implicit conversion of Hash into String)

[rg-ac]

We tried the redmine_doc_pu on the following setup:

Linux Ubuntu 14.04
Redmine version 3.2.8.stable
Ruby version 2.2.4-p230 (2015-12-16) [x86_64-linux]
Rails version 4.2.7.1

We can create new documents under 'Publish', but when the Build is started, there is an Internal error and the logfile says:

TypeError (no implicit conversion of Hash into String):
plugins/redmine_doc_pu/lib/textile_doc_latex.rb:207:in to' plugins/redmine_doc_pu/lib/textile_doc_latex.rb:207:in to_latex'
plugins/redmine_doc_pu/lib/latex_wiki_page.rb:60:in to_latex' plugins/redmine_doc_pu/app/models/doc_pu_wiki_page.rb:24:in to_latex'
plugins/redmine_doc_pu/lib/latex_doc.rb:67:in block in to_latex' plugins/redmine_doc_pu/lib/latex_doc.rb:66:in to_latex'
plugins/redmine_doc_pu/lib/latex_doc.rb:120:in build' plugins/redmine_doc_pu/app/models/doc_pu_document.rb:27:in build'
plugins/redmine_doc_pu/app/controllers/doc_pu_controller.rb:101:in build_remote' lib/redmine/sudo_mode.rb:63:in sudo_mode'

[rg-ac]

We also tried it with ruby 2.1.5 - same problem.

[vvmruder]

Sorry, I'am blocked by other projects. But I will try to look at it soon.

[rg-ac]

It might sound strange but it is triggered by the content of the wiki page. If I create a new wiki page with just the content "foo" it works as expected. If I edit the wiki page to have "@foo@" as the content I have the problem described above.