My Jenkins instance/project are working just fine and builds work as expected.
Now I try to use the "build-name-setter" plugin. My goal is to have build names like "svn123build9879".

I installed the plugin via the plugin manager, and set the new "Build Name" field to "svn${SVN_REVISION}build${BUILD_NUMBER}" (without quotes). It looks like the expected syntax, and I can see ${SVN_REVISION} in my env-vars.html
However, this leads to the following error in the console log:
Unrecognized macro 'SVN_REVISION' in 'svn${SVN_REVISION}build${BUILD_NUMBER}'

I'm available for more info. I searched for similar bugs, sorry if that's not a but but just a misconfiguration, please point me to what you think might be wrong.