Thank you for providing me with the extra files. Unfortunately, indicating an element from the Attach Browser activity did not cause any errors for me
Could you maybe do these steps to clean your environment a bit:
- Close Studio
- kill the UiPath processes in the task manager
- clear (or simply rename) these paths with temporary cache files
%USERPROFILE%\.nuget %LOCALAPPDATA%\UiPath\.cache %LOCALAPPDATA%\NuGet %LOCALAPPDATA%\Temp\NuGetScratch %LOCALAPPDATA%\Temp\nuget
- start Studio and try again
Hopefully, Studio will re-download all dependencies and the error will be gone