How to debug UI Path Custom Activity source code in the Visual Studio

Hi I developed custom activity using C# and visual studio . But i want to know how to debug it in the Visual Studio

One way is to do as below:

  1. Open you custom activity solution in visual studio and add a breakpoint.
  2. Add a message box right before the custom activity in uipath.
  3. Run the process from uipath.
  4. Keeping the message box open, navigate to ‘Attach to Process’ in visual studio and Select UipathExecuter.exe
  5. Click on the message box.
  6. You will hit the breakpoint within your solution. From where you can now debug.

Have a look at this demo for more details,

Rammohan B.


Nice :slight_smile:
Am I able to use there for example a Watch feature in the MSVS?

Thank you

Hey @Rammohan91, I am building a custom rule in C# in which I need to get the default name of an activity, could you please tell me about how to do it?

Hi all,

Reviving an ancient topic :stuck_out_tongue:

I have been using this for a long time to debug stuff for custom activities.
Recent updates to UiPath Studio (and the executor) seem to have maybe broken the ability to do this?

I now get 3 instances of instances of the executor, I was previously able to still attach to one of them and debug. Now the one I think I need states I cannot attach as a debugger is already attached, I am guessing Studio changed the way it handles debugging and is hogging the ‘attaching’ and preventing me from doing it also via Visual Studio?

I am on the latest enterprise release 23.4.2