Solved: “Cannot execute a program. The command being executed was oslyncsc.exe”

When you publish your ASP.NET project to a hosting account such as GoDaddy, you may run into the issue below. This issue may occur even though your code works fine in localhost.

Server Error in ‘/’ Application.

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Parser Error 
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

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Parser Error Message: Cannot execute a program. The command being executed was “G:PleskVhostswebsite.comhttpdocsin oslyncsc.exe” /shared /keepalive:”10″ /noconfig  /fullpaths @”C:WindowsMicrosoft.NETFrameworkv4.0.30319Temporary ASP.NETFiles oot4a4c810d6d29243eslpxwrhm.cmdline”.

 

 

Resolution

A simple solution for this issue is that removing Roslyn compiler plugin from your project and using old compiler. In order to remove Roslyn:

1. Ffollow “Tools > NuGet Package Manager > Manage NuGet Packages for Solution” in Visual Studio
2. Find “DotNetCompilerPlatform” and uninstall it