The file or directory is corrupted and unreadable

i've added a simple Cshtml there's nothing in it but when i run the project i get this error and i know there's sth wrong with this file bin\roslyn\csc.exe"

Server Error in '/' Application.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ComponentModel.Win32Exception: The file or directory is corrupted and unreadable

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[Win32Exception (0x80004005): The file or directory is corrupted and unreadable]

[ExternalException (0x80004005): Cannot execute a program. The command being executed was "c:\users\mostafa\documents\visual studio 2017\Projects\InstagramAutomationPosts\Instagram_Automation_Posts\bin\roslyn\csc.exe" /shared /keepalive:"900" /noconfig /fullpaths @"C:\Users\Mostafa\AppData\Local\Temp\Temporary ASP.NET Files\vs\a17df867\580bcfa2\mauhk4p3.cmdline".]

My view

@{
ViewBag.Title = "Index";
}

<h2>Index</h2>

how can i solve this issue?

i know it's not correct way to answer but what i did was (and might help someone in future),i made another project and copied everything there and it got fixed