The instance of entity type 'Customer' cannot be tracked because another instance with the key value '{Id: ...}' is already being tracked

The instance of entity type 'TestType' cannot be tracked because another instance of this type with the same key is already being tracked

ZZZ_tmp

EF: The instance of entity type X cannot be tracked because another instance of this type with the same key is already being tracked

ZZZ_tmp

Entity Famework core - The instance of entity type cannot be tracked because another instance of this type with the same key is already being tracked

ZZZ_tmp

The instance of entity type 'xTestType' cannot be tracked because another instance of this type with the same key is already being tracked?

ZZZ_tmp

The instance of entity type ... cannot be tracked because another instance of this type with the same key is already being tracked

ZZZ_tmp

The instance of entity type <T> cannot be tracked because another instance with the same key value for {'Id'} is already being tracked

ZZZ_tmp

The instance of entity type 'Article' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked

ZZZ_tmp

The instance of entity type 'Item' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked

Numerous problems There is one awful root that I keep running into. In a nutshell: dbContext is scoped rather than singleton, as I've discovered the hard way. Although this is a store type, the problem was the same. Here is a code snippet for initializing tests....public TestBase() { services = new ServiceCollection(); storeContext = StoreC...

The instance of entity type '' cannot be tracked because another instance with the key value '{Id: 13}' is already being tracked

ZZZ_tmp

Entity framework Core - The instance of entity type cannot be tracked because another instance with the key value is already being tracked

ZZZ_tmp