failed to resolve junit platform launcher 1.6.3 intellij

Question

I am trying to run tests in Intellij which used to work earlier in spring boot 2.2.x. I recently upgraded to spring boot 2.3.9. When I try to run the test from Run Configurations, it doesn't run the test and throws the error:

'failed to resolve junit platform launcher 1.6.3 intellij'.

However if I run the test in cli, it works fine.

Answer 1

It turns out that, junit5-platform-launcher dependency needs to be added in order for Junit5 tests to run in IntelliJ.

https://youtrack.jetbrains.com/issue/IDEA-231927?_ga=2.5997872.2063517257.1613993298-1098513328.1597974168

https://junit.org/junit5/docs/current/user-guide/#running-tests-ide-intellij-idea

Add this dependency explicitly in pom.xml, and it will solve the issue.

<dependency>
     <groupId>org.junit.platform</groupId>
     <artifactId>junit-platform-launcher</artifactId>
     <scope>test</scope>
</dependency>

Answer 2

I was facing same issue "failed to resolve junit platform launcher 1.8.1" intellij. IntellJ version: 2021.3

I found answer here and it worked, no need to add any dependency to pom.

Go to settings >> HTTP Proxy >> choose auto-detect proxy settings

Answer 3

For IntelliJ Idea 2021.1, I fixed a similar problem with:

    <dependency>
        <groupId>org.junit.platform</groupId>
        <artifactId>junit-platform-launcher</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.vintage</groupId>
        <artifactId>junit-vintage-engine</artifactId>
        <scope>test</scope>
    </dependency>

Maybe an even better fix is:

<dependencyManagement>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.junit/junit-bom -->
        <dependency>
            <groupId>org.junit</groupId>
            <artifactId>junit-bom</artifactId>
            <version>5.7.1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

Found the above solution on Jetbrains issue tracker