entityframework core VS2017 migration file and designer file creating separately

Files and File Groups in Entity Framework 6

If anyone is interested, I ended up doing this in a migration: ...Sql(@" IF NOT EXISTS (SELECT * FROM sys.filegroups where name = 'AUDIT') BEGIN ALTER DATABASE CURRENT ADD FILEGROUP [AUDIT] END ", true); Sql(@" IF EXISTS (SELECT * FROM sys.filegroups where name = 'AUDIT') AND NOT EXISTS (SELECT * FROM sys.master_fil...

Cannot attach database file when using Entity Framework Core Migration commands

There may be a different *.mdf file already attached to a database named EfGetStarted2... Try dropping/detaching that database then try again....You might also be running into problems if the user LocalDB is running as doesn't have correct permissions to the path.

How to re-create initial migration on the same .cs file

Here you can see how I solved this....Be careful with this approach because in my scenario I'm still in development phase so I do not need to keep the database nor the data....If you want to overwrite the current "InitialCreate" file and re-generate the DB, follow these steps:...1) Run in Package Manager Console:...Add-Migration InitialCreate -forc...

Entity Framework Core 2.0 Add-Migration doesn't create any migration files

I had to mark a project as the start-up project.

EntityFramework Core 2.0 - Add Migration error "The EntityFramework package is not installed"

I was able to get past this issue using the command-line-interface, by following article:...https://docs.microsoft.com/en-gb/aspnet/core/data/ef-mvc/migrations#introduction-to-migrations

dotnet ef migrations add: create migration file only if there are changes

I don't know if its possible at all, But empty migrations are helpful also like if you want to run any script manually, for example, create/alter StoredProcedures/Trigger. For this purpose, you can generate an empty migration exclusively for a particular purpose.

Why can't I use file extensions in Entity Framework Core Sqlite files?

The issue results from the previous connection still having access to the file....As mentioned in the thread below Sqlite's C# implementation has a quirk where after a .Close() the connection is not truly cleaned up until a garbage collect runs...System.Data.SQLite Close() not releasing database file...To fix it you could add IDisposable to your IA...

.designer file of migration in EF core not being associated with .cs file in visual studio

Try to use ...Update... instead of ...Include.......In your ....csproj... file, add these lines to the ...ItemGroup...:...<Compile Update="yourfilename.Designer.cs"> <DependentUpon>yourfilename.cs</DependentUpon> </Compile>

Deleted database & migration file, can't make new migrations nor revert old migrations, what now?

If you dropped the database then it's easy. Delete the migrations folder....Then run...add-migration Initial...update-database...Also, I tend to remove any ...<Compile Remove="" />... from the project file.

EF Core "no migrations found" despite Migrations folder containing migration files

It turns out this error was because of the lack of Designer.cs files. We deleted them due to ...the response in this post..., but EF was not able to find our migrations without them. If you plan on running your migrations in any other environments, don't delete your Designer files!