DbUpdateException: An error occurred while saving the entity changes. See the inner exception for details.

1451 MySQL ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails 1452 MySQL ERROR 1452: Cannot add or update a child row: a foreign key constraint fails 23502 ERROR: null value in column "x" of relation "y" violates not-null constraint 23503 ERROR: insert or update on table "x" violates foreign key constraint "fk" — Key (user_id)=(5) is not present in table "users" 23503 parent ERROR: update or delete on table "users" violates foreign key constraint on table "orders" — Key (id)=(5) is still referenced 23505 PostgreSQL: ERROR: duplicate key value violates unique constraint 23514 ERROR: new row for relation "x" violates check constraint "y" 2627 SQL Server: Violation of PRIMARY KEY constraint 'x'. Cannot insert duplicate key in object 'y'. (Msg 2627) 42P10 ERROR: there is no unique or exclusion constraint matching the ON CONFLICT specification A second operation was started on this context EF Core: A second operation was started on this context instance before a previous operation completed ALREADY_EXISTS API Error: Resource already exists (ALREADY_EXISTS / resource_already_exists / 409) Cannot access a disposed context instance ObjectDisposedException: Cannot access a disposed context instance cannot be tracked because another instance with the same key The instance of entity type 'X' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked E11000 duplicate key MongoServerError: E11000 duplicate key error collection: db.users index: email_1 dup key Hibernate ConstraintViolationException org.hibernate.exception.ConstraintViolationException: could not execute statement JsonException object cycle JsonException: A possible object cycle was detected No database provider has been configured InvalidOperationException: No database provider has been configured for this DbContext ORA-00001 ORA-00001: unique constraint (SCHEMA.PK_X) violated ORA-01400 ORA-01400: cannot insert NULL into ("SCHEMA"."TABLE"."COLUMN") Prisma P2002 PrismaClientKnownRequestError P2002: Unique constraint failed on the fields: (`email`) requires a primary key to be defined EF Core: The entity type 'X' requires a primary key to be defined SQLAlchemy IntegrityError sqlalchemy.exc.IntegrityError: (psycopg2.errors.UniqueViolation) duplicate key value violates unique constraint SQLite NOT NULL failed sqlite3.IntegrityError: NOT NULL constraint failed: table.column SQLite UNIQUE failed sqlite3.IntegrityError: UNIQUE constraint failed: users.email The LINQ expression could not be translated EF Core: The LINQ expression 'x' could not be translated. Either rewrite the query in a form that can be translated, or switch to client evaluation explicitly Unable to create a 'DbContext' dotnet ef: Unable to create a 'DbContext' of type ''. The exception 'Unable to resolve service for type DbContextOptions' was thrown while attempting to create an instance