How to Resolve 'MetadataException: Unable to Load the Specified Metadata Resource' When Creating an ObjectContext?

Solving the "MetadataException: Unable to Load the Specified Metadata Resource" Error During ObjectContext Creation

The error "MetadataException: Unable to Load the Specified Metadata Resource" often occurs when creating an ObjectContext. While common culprits are incorrect connection strings and model configuration problems, the issue can also appear unexpectedly.

This problem might be resolved by checking the MetadataArtifactProcessing property in your model. If it's set to "Copy to Output Directory," change it to "Embed in Output Assembly."

Another potential cause is an inaccurate connection string in your App.Config file. Double-check that it precisely reflects your database settings. Regenerating the EDMX file might be necessary to ensure it accurately represents database modifications.

If the above solutions are ineffective, a post-compile task embedding the EDMX into the assembly could be malfunctioning. Investigate this task for potential errors.

Remember, the root cause might lie outside the scope of this initial troubleshooting. A more detailed guide offers further diagnostic steps and explanations.

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