Я пытаюсь выполнить миграцию из Visual Studio. Я строю проект с Razor pages ASP.NET Core With Oracle database, и когда я делаю миграцию, появляется эта ошибка:
2020-03-17 22:32:15.351073 ThreadID:1 (ERROR) OracleRelationalCommand.Execute() : Oracle.ManagedDataAccess.Client.OracleException (0x80004005): ORA-00955: Es gibt bereits ein Objekt mit diesem Namen
at OracleInternal.ServiceObjects.OracleConnectionImpl.VerifyExecution(Int32& cursorId, Boolean bThrowArrayBindRelatedErrors, SqlStatementType sqlStatementType, Int32 arrayBindCount, OracleException& exceptionForArrayBindDML, Boolean& hasMoreRowsInDB, Boolean bFirstIterationDone)
at OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteNonQuery(String commandText, OracleParameterCollection paramColl, CommandType commandType, OracleConnectionImpl connectionImpl, Int32 longFetchSize, Int64 clientInitialLOBFS, OracleDependencyImpl orclDependencyImpl, Int64[]& scnFromExecution, OracleParameterCollection& bindByPositionParamColl, Boolean& bBindParamPresent, OracleException& exceptionForArrayBindDML, OracleConnection connection, OracleLogicalTransaction& oracleLogicalTransaction, Boolean isFromEF)
at Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteNonQuery()
at Oracle.EntityFrameworkCore.Storage.Internal.OracleRelationalCommandBuilderFactory.OracleRelationalCommandBuilder.OracleRelationalCommand.Execute(IRelationalConnection connection, DbCommandMethod executeMethod, IReadOnlyDictionary`2 parameterValues)