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FitnessFrog App Crashing


Using VS 2019 Community. Application loads and compiles successfully. However when I execute a message is returned stating "csc.exe" could not be found in the folder "\Fitness_Frog\Treehouse.FitnessFrog.Spa\bin\roslyn".

"roslyn" did not exist so I created it and copied csc.* to it. Now the application states csc.exe has stopped working.

What can we do to get this working? I do not see any notes or other communities regarding setting-up the environment and I do not have time to tweak someone else's app that should be working.

What is the next step?

Thank you