java - Maven package works but Intellij's build fails

Question

I have a JDK 1.7 project with a maven dependency to a local jar in my maven repo.

I'm unable to build the project using Intellij, with the errors that a symbol cannot be found (the symbol is a class importing packages from the local jar)

But I can successfully build the project using 'mvn package'.

I've spent so much time looking for solutions, things I've already done:

• Invalidated cache
• 'mvn clean install' the local jar dependecy
• Marked to 'autoload snapshots' in Intellij's maven configuration
• Reimpoted maven in Intellij
• Syncornized

This error happend to my couple of times before, but usually just closing the Intellij and /or doing the 'mvn clean install' did the trick.

Please help.

Answer 1

I know this is late but executing mvn idea:idea solves the issue.

The command re-generates the crucial IntelliJ IDEA files: ipr, iml, and iws, and thus re-align them with your pom.xml.

Documentation: https://maven.apache.org/plugins/maven-idea-plugin

The plugin is retired but still (as of 05.06.2021) works like magic :)