[launcher] - Clean project should see if process is running then kill versus just throw error

[crutkas]

Cleaned project and got
38>ERROR: The process "PowerLauncher.exe" not found.

From @ryanbodrug-microsoft

@crutkas Just to be clear that output is from the taskkill process. It's not an error or warning in visual studio. The fix for the above log would be to suppress the stdoutput for the task. I'm happy to fix it... its probably low priority unless you think it's going to confuse everyone that something is wrong.

[crutkas]

is it possible to only have the error be thrown once? :)

[ryanbodrug-microsoft]

is it possible to only have the error be thrown once? :)

I have it once per project in the launcher directory because each of these assemblies gets used in the powerlauncher.dll. I can't assume what project they are building, as I'm trying to support the 'edit code - hit F5' scenario. I don't know which project they will be editing code. There may be a more complicated way of solving this, but I think I'd prefer to just suppress the taskkill output.