Menu
i have somehow gotten my EF5 project into a state where I can't proceed.
When I do an 'update-database' i get:
Unable to update database to match the current model because there are pending changes and automatic migration is disabled. Either write the pending model changes to a code-based migration or enable automatic migration. Set DbMigrationsConfiguration.AutomaticMigrationsEnabled to true to enable automatic migration. You can use the Add-Migration command to write the pending model changes to a code-based migration.
ok, fine, so i try to 'add-migration', and i get:
Unable to generate an explicit migration because the following explicit migrations are pending: [ ]. Apply the pending explicit migrations before attempting to generate a new explicit migration.
20 GOTO 10 ??
what am i supposed to do at this point? (beyond switching to NHibernate?)
544
Delete your Migrations folder. Create a new migration and generate a SQL script for it. In your database, delete all rows from the migrations history table. Insert a single row into the migrations history, to record that the first migration has already been applied, since your tables are already there.
Following is the context class. Step 1 − Before running the application you need to enable migration. Step 2 − Open Package Manager Console from Tools → NuGet Package Manger → Package Manger Console. Step 3 − Migration is already enabled, now add migration in your application by executing the following command.
What worked for me was:
add-migration DummyMigration. That produced some spurious changes that I commented update-database to add the migration + metadata to the [__MigrationHistory] table.add-migration/update-database.Not ideal, and would be cool to see if there's a better solution, but that worked for me.
98
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
