'Unable to load a Suite class' while running ScalaTest in IntelliJ

Question

I\'m having some issues today with running a simple TestKit test in Intellij. The tests are for Scala code (I have the Scala plug-in for Intellij) and are based on Ray Roes

Answer 1

In my case, I was missing the Scala facet in my module.

https://blog.jetbrains.com/scala/2010/09/02/project-configuration-explained/

I got rid of the error once I configured module properly.

Answer 2

My project already had the setup as mentioned by @Rustam Aliyev. Still was getting the same exception. Rebuilding the project did not help either. Quite weird ; but Restarting the IDE helped to solve the issue

Answer 3

You need to set up the Scala SDK. 1.) Usually, intelliJ will ask you by showing a message on right hand corner of your editor 2.) You can do it by yourself as mentioned on the https://www.jetbrains.com/help/idea/discover-intellij-idea-for-scala.html

Answer 4

This is how I solved same exception:

--> Right click on your project folder in IDE:

--> Click Add Framework Support
--> Then Check Scala
--> Click OK

Answer 5

If you are using IntelliJ to run scalatest make sure the class paths are correct. For example:

 /dummyApp 

your build.sbt should look like, name := "dummyApp". If you name it name := "dummy App" you will get errors.

Answer 6

I am using the multi maven module and tried all possibilities here but not able to fix this. But for me I closed the complete IntelliJ -> removed .idea folder -> deleted managed projects from recent projects window.-> reimport the project did the job.