How do I fix runtime InteropServices COMException?

How do I fix runtime InteropServices COMException?

FIX: System. Runtime. InteropServices. COMException (0x80070422)

1. Solution 1: Run a couple of DISM commands.
2. Solution 2: Run an SFC scan.
3. Solution 3: Repair your computer using installation or recovery media.

What is System Runtime InteropServices COMException?

COMException(String) Initializes a new instance of the COMException class with a specified message. COMException(String, Exception) Initializes a new instance of the COMException class with a specified error message and a reference to the inner exception that is the cause of this exception.

What is InteropServices?

Runtime. InteropServices. The types in this namespace work with unmanaged code using either PInvoke or COM. PInvoke (short for Platform Invoke) lets you access functions that reside in underlying operating system-specific shared libraries (on Win32, these are DLLs).

What is Mscorlib DLL in c# net?

The mscorlib.dll file is very important in .NET. The file name at one time stood for -Microsoft Common Object Runtime Library‖ but now it stands for -Multilanguage Standard Common Object Runtime Library. This is the main DLL for class libraries in .NET, and it contains all the basic .NET classes and structures.

What does ComVisible mean?

The ComVisible attribute indicates whether the class is visible to COM (True meaning it is). Note that the interface declaration also has this attribute. The result is that when reflection is used to locate exported COM types, (for example with programs such as Regasm.exe and Tlbexp.exe) these two types will be found.

What is ComVisible true?

The default value of ComVisible is true alright, if it is not set by anyone, but Visual Studio sets this value to false. Which means your assembly won’t be ComVisible unless you turn it on manually. But before VS2008 this attribute was indeed set to true by default.

How do I fix Mscorlib dll error?

DLL error on your computer:

1. Repair MSCORLIB. DLL Error Automatically.
2. Download MSCORLIB. DLL Manually.
3. Register the MSCORLIB. DLL File.
4. Run a System File Checker to Fix the MSCORLIB. DLL Error.
5. Scan Your Computer for Malware.
6. Perform a System Restore to Fix the Corrupt MSCORLIB. DLL File.

Where is Mscorlib dll located?

The mscorlib. dll file will be present in the path C:/ WINNT/ Microsoft.NET/ Framework/ (version number)/ mscorlib.

How do I make my DLL visible?

In Project Properties > Application tab > Assembly Information button > check “Make assembly COM-Visible”. This makes all public methods in the class COM visible. In Project Properties > Build tab > Set “Platform target” to x86. That’s all you need to do to create the DLL.

What is the use of Mscorlib DLL?

The mscorlib. dll file is among the pre-coded solutions that form the framework’s Base Class Library. The mscorlib. dll program file included in the BCL encapsulates a large number of common functions, such as file reading and writing, graphic rendering, database interaction, and XML document manipulation.

Where is the exception in system.runtime.interopservices.comexception?

Exception Details: System.Runtime.InteropServices.COMException: Failed to open report. 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.

When does the runtime throw a comexception class?

When the runtime encounters an unfamiliar HRESULT (an HRESULT that lacks a specific, corresponding exception), it throws an instance of the COMException class. This all-purpose exception exposes the same members as any exception, and inherits a public ErrorCode property that contains the HRESULT returned by the callee.

How does Common Language Runtime transform HRESULTs to exceptions?

The common language runtime transforms well-known HRESULTs to .NET Framework exceptions, enabling COM objects to return meaningful error information to managed clients. The HRESULT to exception mapping also works in the other direction by returning specific HRESULTs to unmanaged clients. For mapping details, see How to: Map HRESULTs and Exceptions.

Why is a comexception thrown in Visual Studio?

COM is used to communicate between Visual Studio and the hosting process. Because it is used before code runs, a call to CoInitializeSecurity causes this exception to be thrown. In some cases, running Visual Studio as Administrator may resolve the issue.