Cannot resolve symbol with AutoValue and IntelliJ

Question

I have been trying to find the correct settings for IntelliJ\'s annotation processing in order for it to co-exist with Gradle\'s build process.

Whenever I build from Int

Answer 1

The answers are (should be) in the README for the gradle-apt-plugin: https://github.com/tbroyer/gradle-apt-plugin

Namely, also apply the net.ltgt.apt-idea plugin.

Btw, I recommend delegating build/run actions to Gradle in IntelliJ. Sure it's a bit slower, but requires zero setup in the IDE and works reliably. That said, it should also work OK if you don't.