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Why are Maven library dependencies not automatically added to my project in IntelliJ IDEA?

Barbara Streisand
Barbara StreisandOriginal
2024-11-01 18:29:02298browse

Why are Maven library dependencies not automatically added to my project in IntelliJ IDEA?

Importing Maven dependencies in IntelliJ IDEA

When importing Maven projects in IntelliJ IDEA, users encountered the problem that all Maven dependencies cannot be automatically included problem. Dependency errors are only displayed when opening a specific class.

Question

Why are Maven library dependencies not automatically added to the project?

Answer

IntelliJ should automatically download and add all dependencies to the project's classpath, as long as the POM is compliant and all dependencies are available.

When importing a Maven project into IntelliJ, a message box will usually appear asking if you want to configure automatic import for the Maven project. This means that any changes made to the POM will be loaded automatically.

Solution

  1. Enable automatic import

    Go to File > Settings > Maven > Import, select the checkbox "Automatically import Maven projects".

  2. Do a full clean

    • Close the project window (and IntelliJ), delete all *.iml files and all .idea folders (There should be one per module).
    • Run mvn clean install from the command line.
    • Re-import the project into IntelliJ and note when you are asked to enable automatic import. > Build Tools > Maven > Import.

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