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I'm trying to re-install my EntityFramework package using
PM> Install-Package EntityFramework But I get the following message
'EntityFramework 5.0.0' already installed. already has a reference to 'EntityFramework 5.0.0'.
So I tried to uninstall the package using
PM> Uninstall-Package EntityFramework -Force But I keep on getting the following message
Uninstall-Package : Unable to find package 'EntityFramework'. At line:1 char:1 + Uninstall-Package EntityFramework -Force + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [Uninstall-Package], InvalidOperationException How do I re-install the package?
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Go to Solution Explorer >> Dependencies >> NuGet to locate the “Microsoft. EntityFrameworkCore” option. We can uninstall Entity Framework from our project or our solution very easily. Go to Tools >> “NuGet Package Manager” >> “Manage NuGet Packages for Solution”.
If that's an Add-in，please uninstall that directly in the "Extension" in Visual Studio. And then you can go to Visual Studio Gallery searching for that and re-install. I had this problem and solved it by Uninstalling Entity Framework Power Tools Beta 2 from the Tools -> Extensions and Updates menu.
The NuGet Package Manager Console lets you use NuGet PowerShell commands to find, install, uninstall, and update NuGet packages. Using the console is necessary in cases where the Package Manager UI does not provide a way to perform an operation.
Open the Package Manager Console from Tools → Library Package Manager → Package Manager Console and then run the enable-migrations command (make sure that the default project is the project where your context class is).
Try deleting it out of the project references, and out of packages.config. Then re-add it.
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