Visual Studio Debugging encountered System.badimageformatexception

System.badimageformatexception "type of unhandled exception in the unknown module. Occurs in

Additional information: Failed to load file or assembly "SendYourIP.exe" or one of its dependencies. The runtime that generated this assembly is newer than the currently loaded run and cannot load this assembly.

The reason is: put. The NET2.0 framework is changed to. NET 4.0 and is caused by the following configuration in App. Config:

<startup uselegacyv2runtimeactivationpolicy= "true" >
<supportedruntime version= "v2.0.50727"/>
<supportedruntime version= "v4.0"/>
</startup>

You are sure to change the program to. NET 4.0, the <supportedruntime version= "v2.0.50727"/> This line can be removed.

Visual Studio Debugging encountered System.badimageformatexception