Question

I am using Code First to create a table.

I created the class, the mapping file and issued the add-migration command in nuget and then the update-database command

I then changed the class and like an idiot deleted the table.

I deleted the migration class file

I issued a add-migration command

When I issue the update-database command I get the following error:

System.Data.SqlClient.SqlException (0x80131904): Cannot find the
object “dbo.CorrectiveActionPlan” because it does not exist or you do
not have permissions. at
System.Data.SqlClient.SqlConnection.OnError(SqlException exception,
Boolean breakConnection, Action1 wrapCloseInAction) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection, Action1 wrapCloseInAction) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) at
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj, Boolean& dataReady) at
System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String
methodName, Boolean async, Int32 timeout) at
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource1
completion, String methodName, Boolean sendToPipe, Int32 timeout,
Boolean asyncWrite) at
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at
System.Data.Entity.Migrations.DbMigrator.ExecuteSql(DbTransaction
transaction, MigrationStatement migrationStatement) at
System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ExecuteSql(DbTransaction
transaction, MigrationStatement migrationStatement) at
System.Data.Entity.Migrations.DbMigrator.ExecuteStatements(IEnumerable1
migrationStatements) at
System.Data.Entity.Migrations.Infrastructure.MigratorBase.ExecuteStatements(IEnumerable1
migrationStatements) at
System.Data.Entity.Migrations.DbMigrator.ExecuteOperations(String
migrationId, XDocument targetModel, IEnumerable1 operations, Boolean
downgrading, Boolean auto) at
System.Data.Entity.Migrations.DbMigrator.ApplyMigration(DbMigration
migration, DbMigration lastMigration) at
System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.ApplyMigration(DbMigration
migration, DbMigration lastMigration) at
System.Data.Entity.Migrations.DbMigrator.Upgrade(IEnumerable1
pendingMigrations, String targetMigrationId, String lastMigrationId)
at
System.Data.Entity.Migrations.Infrastructure.MigratorLoggingDecorator.Upgrade(IEnumerable1
pendingMigrations, String targetMigrationId, String lastMigrationId)
at System.Data.Entity.Migrations.DbMigrator.Update(String
targetMigration) at
System.Data.Entity.Migrations.Infrastructure.MigratorBase.Update(String
targetMigration) at
System.Data.Entity.Migrations.Design.ToolingFacade.UpdateRunner.RunCore()
at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
ClientConnectionId:a6e92a35-cc9e-4867-97a5-0a274081d853 Cannot find
the object “dbo.CorrectiveActionPlan” because it does not exist or you
do not have permissions.

How do I force EF to recreate the table?

Answer 1

I found my answer.

I deleted the row in [dbo].[__MigrationHistory] that corresponded to my Migration

I then deleted the new migration file

I re-ran add-migration

and then re-ran update-database -verbose