web applications fail to debug on fresh install

Shane 1 Reputation point

I’ve recently had to do a fresh install of windows which has me reinstalling Visual Studio and IIS.
Since doing this I cannot debug any Web application, I can create any type be it windows forms, empty all will not load correctly in to debug.
A single page will load up looking to attempt but then immediately Visual Studio goes in to break mode with the following error.


I can attempt to continue execution which continues with errors.
In the output I get the following:
The runtime has encountered a fatal error. The address of the error was at 0xf0d444e2, on thread 0x3ff0. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack.

The program ‘[16508] iisexpress.exe’ has exited with code -1 (0xffffffff).

I run Visual Studio as Administrator, I’ve reinstalled IIS multiple times,
Set IIS to allow 32bit applications.
Tried to change the port which it loads on.
Visual studio is 2017 edition.

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  1. Yijing Sun-MSFT 7,026 Reputation points

    Hi @Shane ,
    Do you have the managed codes? Wheather your problem is caused by unmanaged part of the code somewhere else?
    Best regards,
    Yijing Sun

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