Intellij Plugin Development - Gradle does not find dependency of IntelliJ

Question

I am currently developing a plugin for IntelliJ and trying to use another built-in IntelliJ Plugin as dependency (git4idea). As described in the IntelliJ Plugin Development documentation, I added the required JARs to my class Path in Project Structure: Project Structure Dialog Screenshot

I also added <depends>Git4Idea</depends> to my plugin.xml file.

IntelliJ finds these jars now and Code Completion works well, no errors found... But when I try to build the Plugin with gradle I get ClassNotFound errors or errors like this:

TkGitflowBaseImpl.java:15: error: package git4idea.commands does not exist import git4idea.commands.Git; ^

Obviously, Gradle does not find these jars. Since they are part of the IntelliJ installation, I can't just add them to a lib folder and add them as local jars in the build.gradle file. As Gradle JVM, I chose the exact same JVM I chose as JVM behind the IDEA Platform SDK, so the jars should be available to Gradle.

Do you know how I can help Gradle find these jars or add them as "provided" dependencies without adding them to a lib folder?

I am using IntelliJ IDEA 2017.2.5 and Gradle 4.2.1

Moritz Hohmeier · Accepted Answer · 2017-12-05 14:07:07Z

After reading through the documentation of the IntelliJ Gradle Plugin (https://github.com/JetBrains/gradle-intellij-plugin), I saw that that a "=" was missing in the build.gradle file like:

intellij { version '2017.2.5' pluginName 'pluginname' plugins = ['Git4Idea'] }

instead of

intellij { version '2017.2.5' pluginName 'pluginname' plugins ['Git4Idea'] }

Jess · Accepted Answer · 2021-09-25 14:07:51Z

https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html#optional-plugin-dependencies

build.gradle

intellij { version = '2021.2' plugins = ['Git4Idea'] }

src\main\resources\META-INF\plugin.xml

<depends>Git4Idea</depends>

Oleg Kokorin · Accepted Answer · 2025-07-31 10:26:47Z

for the newer intelliJ, gradle is a kotlin (of some kind) based one, so the config for the

build.gradle.kts:

 // Configure Gradle IntelliJ Plugin intellij { version.set("2023.1.7") type.set("CL") // Target IDE Platform plugins.set(listOf("com.intellij.clion", "hg4idea", "Git4Idea")) }

beware, case sensitive names for the plugins

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