Unable to update database to match the current model because there are pending changes and automatic migration is disabled

Question

I, for the life of me, can\'t get rid of this error message. I have tried almost everything that I can.

MyDBContext.cs

        public MyDBContext() :         


        

Answer 1

You simply made changes to one or more of your entity classes. Whether you added a new property, changed the data type of that particular property or you simply added a new entity class, in all of those cases you indeed need to add a new migration.

Seeing that you've already tried that, make sure that when you execute the Add-Migration command in Package Manager Console that you've selected the project that contains your DBContext class, the Configuration class and Migrations folder. Furthermore, you are passing a specific connection string to the base class (DbContext) of the MyDBContext class. Make sure you are also upgrading and updating the correct database.

Know that you can perform an Add-Migration command and an Update command to a specific database:

Example snippets:

Add-Migration AddProperty1 -ConnectionString "Data Source=.\SQLEXPRESS;Initial Catalog=MyDatabaseCatablog;Connect Timeout=30;User ID=MyUser;Password=mypassword12345" -ConnectionProviderName "System.Data.SqlClient" -Verbose

and

Update-Database -ConnectionString "Data Source=.\SQLEXPRESS;Initial Catalog=MyDatabaseCatablog;Connect Timeout=30;User ID=MyUser;Password=mypassword12345" -ConnectionProviderName "System.Data.SqlClient" -Verbose

Hope this helps.