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[CoreStore: Fatal Error] BaseDataTransaction.swift:83 create #222

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opened 2025-12-29 15:26:55 +01:00 by adam · 2 comments
adam commented 2025-12-29 15:26:55 +01:00
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Originally created by @shift00 on GitHub (Jul 11, 2018).

Hello, I have very annoying problem with CoreStore. I start the application and sometimes I get an error which can be seen below. What can I do with this?

❗ [CoreStore: Fatal Error] BaseDataTransaction.swift:83 create
↪︎ Attempted to create an entity of type 'SampleCSModel', but a destination persistent store containing the entity type could not be found.

Originally created by @shift00 on GitHub (Jul 11, 2018). Hello, I have very annoying problem with CoreStore. I start the application and sometimes I get an error which can be seen below. What can I do with this? ❗ [CoreStore: Fatal Error] BaseDataTransaction.swift:83 create ↪︎ Attempted to create an entity of type 'SampleCSModel', but a destination persistent store containing the entity type could not be found.
adam closed this issue 2025-12-29 15:26:55 +01:00
adam commented 2025-12-29 15:26:56 +01:00
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@shift00 commented on GitHub (Jul 11, 2018):

Hint: My code with addStorage... is executed in AppDelegate in didFinishLaunchingWithOptions

@shift00 commented on GitHub (Jul 11, 2018): Hint: My code with `addStorage...` is executed in AppDelegate in `didFinishLaunchingWithOptions`
adam commented 2025-12-29 15:26:56 +01:00
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@JohnEstropia commented on GitHub (Jul 17, 2018):

It is highly likely you are accessing your entities before the addStorage() method's completion is called. Please make sure your view controllers are not accessing your data before that.

You can easily check this by adding a breakpoint inside the completion closure and inside the CoreStore.defaultStack getter, then make sure that the defaultStack is called only from the CoreStore.addStorage() call.

@JohnEstropia commented on GitHub (Jul 17, 2018): It is highly likely you are accessing your entities before the `addStorage()` method's `completion` is called. Please make sure your view controllers are not accessing your data before that. You can easily check this by adding a breakpoint inside the `completion` closure and inside the `CoreStore.defaultStack` getter, then make sure that the `defaultStack` is called only from the `CoreStore.addStorage()` call.
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Reference: starred/CoreStore#222
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