Process Execution Error - Variable type

Hello,

I am facing one challange to execute my solution in Test environment.
The same solution is working fine in dev environment ( In my system) but after publishing it in Test environment in another machine it give me below error. Can anyone please assist.

image

ProcessSelected is my Argument which is the output of one dilougebox.

Change variable type to String or in the image, update the Value entered as ProcessSelected.ToString

I have resolved it. It happened due to Packages has not been updated newly on RDA system.