Incorrect proj.db version on heroku

[JonRowe]

Hello! I'm trying to use this library (and its bundled so) on Heroku, I've had to tell Heroku to use the bundled .so by setting LD_LIBRARY_PATH but now I'm getting this error:

/app/node_modules/@mapnik/mapnik/share/proj/proj.db contains DATABASE.LAYOUT.VERSION.MINOR = 3 whereas a number >= 4 is expected. It comes from another PROJ installation.

I don't think Heroku dyno's have there own version of proj so is the bundled one incompatible with the library file?

[artemp]

@JonRowe - Could you provide steps to replicate this issue? I'm not familiar with Heroku, but if you're using
npm install @mapnik/mapnik you should get a working node-mapnik without ammending/setting LD_LIBRARY_PATH.
It sounds like you have multiple versions of libraries which create conflict at runtime.