No Ruby interpreter configured for the project warning persists


Hello IntelliJ IDEA community!

I'm encountering an issue with IntelliJ IDEA where I'm constantly getting the warning message "No Ruby interpreter configured for the project" despite trying various solutions. I would greatly appreciate any insights or suggestions on how to resolve this problem.

Here's what I have tried so far:

  1. Verified Ruby installation: I have confirmed that Ruby is installed on my system and is functioning properly. Running ruby -v in the terminal shows the correct Ruby version.

  2. Checked Ruby plugin installation: I have made sure that the Ruby plugin is installed and enabled in IntelliJ IDEA. I found it in "Preferences" -> "Plugins" and verified its presence.

  3. Restarted IntelliJ IDEA: I have attempted to resolve the issue by restarting IntelliJ IDEA, hoping that it would refresh any configuration conflicts. Unfortunately, the warning message still persists.

  4. Invalidated Caches: I have tried invalidating caches and restarting IntelliJ IDEA using the "File" -> "Invalidate Caches / Restart" option. However, this didn't resolve the issue.

  5. Verified project settings: I have checked the project settings and ensured that the correct Ruby SDK is selected for the project. I also verified that the Ruby SDK is correctly configured in "Project Structure" -> "Project Settings" -> "Project".

  6. Created a new project: As a troubleshooting step, I created a new project in IntelliJ IDEA and configured the Ruby SDK from scratch. However, the warning message continues to appear.

At this point, I am unsure of what else to try. I would greatly appreciate any assistance or suggestions from the community on how to resolve this issue. If you have encountered a similar problem or have any insights, I would be grateful for your input.

Thank you in advance for your help!



Would it be possible to attach a screenshot from File - Project Structure - Modules - Your module?


It seems that you have a Java module added, so could you please remove it and then import again as a Ruby one. After that you'll be able to configure a Ruby SDK for that.


What do you mean by that, please explain? I dont see any java module in the project. How do I remove it? 


Java module is marked with a blue icon, so please try deleting it and re-importing it back.


This happened to me when I opened a Rails project in IntelliJ without first installing the Ruby plugin.


Is this fixed after installing the Ruby plugin? If not,  steps to reproduce and screenshots or screencast of the issue would be highly appreciated.


Hi Jacky, I don't have any problem now. It was resolved by following Olga's instructions, above. I removed the Java module and added the Ruby on Rails module. 

Thanks for asking, but I left my previous comment only in hopes it might help someone else to understand what conditions could cause this situation.


Thank you so much for sharing!


I'm was having the same problem, and  it was driving me crazy.  It was happening even when I wasn't in a Ruby project, or when I had already added an interpreter.  

I had to disable the plugin, which is the included JetBRains Ruby plugin.

Problem is, we DO have Ruby in our codebase, and I cannot use the Ruby plugin, so it's a bit problematic.  This has been an ongoing problem for 1.5 years.

Any chance they can look at the plugin at some point?




Hello Rex,

Could you please provide more details about the issue. Do you mean that you have the same problem in the projects with Java modules only?