Unable to start debugging session: Failed to detect dbgshim directory

Hi Tim,

I had the same issue, also on Arch Linux.

Error message is misleading, try running this for more details.

dotnet run

In my case, I had to install aspnet runtime to fix this.

pacman -S aspnet-runtime

Cheers

Thanks for the comment. Unfortunately this hasnt worked. I have the latest sdk installed so the runtime was included. I reinstalled it but I'm still getting the same error. Great to know there are people out there that try to help.

This ticket has been sitting here for nearly 3 weeks and has had no attention from the support people at Jetbrains.

No worries, I know how annoying these issues can be.

Did you get any new info after "dotnet run"?

Experiencing the same issue on Ubuntu 20.04. I have the sdk installed, and have tried multiple configs to get this to work with no success. 

Jack J Barger, 

First of all, is Rider able to run your application without debugging it?

Also, may I ask you to collect the logs again with the Debugger and  Run trace scenario turned on?

1. Navigate to Help | Diagnostic tools | Choose Trace Scenarios and enable Debugger and  Run Trace scenarios;
2. Restart Rider;
3. Start a debugger session to get the dbgshim directory not found message;
4. Try to run your application;
5. Collect the full log bundle via Help | Collect Logs;
6. Disable the trace scenarios;

Please attach the log bundle to a new support request.

Thank you in advance!

We've reproduced the problem, and, hopefully, we'll be able to fix it in Rider 2020.2. Please watch the corresponding issue on YouTrack for updates: https://youtrack.jetbrains.com/issue/RIDER-45519

Thanks Julia and let me know if you still would like the debug logs. I ended up using another machine to finish the project I had been working on, but am happy to reproduce the error if needed.

In my case, I had to right click on the project -> properties and select "target framework" the one that you have installed on your PC. I hope this helps.

I'm still getting this problem on 2020.3

How much longer for a fix?

Unable to start debug session: Failed to detect dbgshim directory."C:\Program Files\JetBrains\JetBrains Rider 2020.3.3\lib\ReSharperHost\JetBrains.Debugger.Worker64c.exe" --mode=client --frontend-port=52715 "--plugins=C:\Program Files\JetBrains\JetBrains Rider 2020.3.3\plugins\rider-unity\dotnetDebuggerWorker"

All I do to reproduce is click "Debug" on an existing netcoreapp3.1 project

Rsryanstephen

A bunch of problems related to detecting dbgshim directory are fixed in Rider 2021.1. Could you please try the latest EAP build and check if debugging works for you?

Thanks Julia all is well