Do you know an example error that proves LT is working? From Yves's description,
it is hard to tell whether LT isn't working at all or if there are no errors found.
The Esperanto page shows example of sentences where errors are detected by LanguageTool in Esperanto.
Since most people here don't speak Esperanto, I'll translate @yvesnev's message:
I tried to make LanguageTool in Esperanto work with LibreOffice version 188.8.131.52 (x64)
with Windows 10, but I did not succeed. This message always occurs: Grammar
checking finished (note that I translated the message, so it may not be exactly the
same message in English). Yet it does not check anything. Do you have advices?
Dominique Pellé advised me to ask here. For him, it works fine, but he uses Linux.
* Does LT work in other languages (English, French, etc.) or is the problem specific to Esperanto?
* Which sentence(s) did you try with expected grammar mistakes?
See also the list of issues with possible solutions:
In the mean time, you can use the online Esperanto checker at: