Finaly, I reproduce easily.
With those mods :
- base v0.17.35
- Hovercrafts v0.17.6
- Electric Vehicles Lib: Reborn v0.1.2
Play > New Game > click on the Play button
=> got the error
I also check with the mod Electric Vehicles: Reborn v0.1.2 :
- base v0.17.35
- Hovercrafts v0.17.6
- Electric Vehicles: Reborn v0.1.2
- Electric Vehicles Lib: Reborn v0.1.2
Play > New Game > click on the Play button
=> everything is fine.
I think in usual case Players install the "lib" because the mod has a dependency on it.
In my case I don't use both, I don't have electric vehicle.
My issue is about a thirdparty mod (Laser Tanks v0.17.10) that include the code of the "Electric Vehicles Lib: Reborn" (v0.1.0).
That sucks.
Finaly,
I think there is something possible to improve in Hovercrafts to detect if Electric Vehicles: Reborn is really present and not only the lib.
Let me know if you need help.
Regards,