How to Resolve Dependency Errors in IntelliJ IDEA Maven Projects?

Resolving Dependency Errors in IntelliJ IDEA Maven Projects

While importing a Maven project into IntelliJ IDEA, you may encounter dependency errors like the ones depicted in the image below:

[Image of dependency error]

To automatically include all Maven dependencies, ensure that your project's POM is compliant and all dependencies are available.

Enabling Auto-Import

During the import process, IntelliJ should prompt you with an option to configure Auto-Import for Maven projects. This allows changes made to the POM to be automatically loaded.

If this prompt doesn't appear, navigate to File > Settings > Maven > Importing. Check the box labeled "Import Maven projects automatically."

Manual Troubleshooting

If Auto-Import doesn't resolve the dependency errors, consider performing a clean-up:

1. Close IntelliJ and delete all *.iml files and .idea folders from the project directory.
2. Run "mvn clean install" from the command line.
3. Re-import the project into IntelliJ and enable Auto-Import when prompted.

IntelliJ 2016 Update

In IntelliJ 2016 and later versions, the Import Maven Projects automatically setting has been relocated to Build, Execution, Deployment > Build Tools > Maven > Importing in the IntelliJ preferences.

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