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The error in the title happens when I try to use a edmx file that I created in a project1 and copied to a project2. In project1 it's working with no problem. What could be wrong?
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The error in the title happens when I try to use a edmx file that I created in a project1 and copied to a project2. In project1 it's working with no problem. What could be wrong?

Entity Framework: The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid.

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C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).