'Environment' object has no attribute 'get_htdocs_dir'

[anonymous]

Hello!

I'm having the same issue as this: #13887

I'm creating a new wiki page with the content

{{{
#!Latex
\Gamma\left(z\right)\Gamma\left(1-z\right)=\frac{\pi}{sin\left(\pi z\right)}
}}}

The image compilation fails with:

Error: Processor Latex failed

'Environment' object has no attribute 'get_htdocs_dir'

Thanks in advance!