问题
I want to create ADO.NET entity data model - database first (.edmx file) with EntityFramework6.Npgsql but it's error. I have installed: - EntityFramework6.Npgsql (version 6.3 newest) - Npgsql (version 4.1.1 newest) - EntityFramework (version 6.3 newest)
I created it before, but I don't know why now! Please help me....
回答1:
This is a known issue that is already tracked on github
In the meantime for those having issues with the latest version of the VSIX (4.1.1.2), please downgrade back to 4.0.x.
So downgrade your Npgsql version and extension version.
来源：https://stackoverflow.com/questions/58518501/cant-create-edmx-file-for-postgresql-use-entityframework-npgsql