This Assembly Is Built by a Runtime Newer than the Currently Loaded Runtime

PROBLEM

When using ArtOfTest.Runner.exe on the Execution Server, you receive one of these errors about a difference in versions:

System.BadImageFormatException: Could not load file or assembly '___' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.
System.BadImageFormatException: This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. (Exception from HRESULT: 0x8013101B)

SOLUTION

It is not permissible to make a copy of ArtOfTest.Runner.exe and execute it from a different location. There is a dependency that requires it to be run from its original location. This is true even if a system environment variable points to that location. By default the location is:

C:\Program Files (x86)\Progress\Test Studio\Bin

For more information please see our user's guide article on ArtOfTest.Runner.

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