After changing the schema, deserializeException occurs in iOS.

[Arosf]

Describe the bug
I added a name to User as follows, generated code, did an amplify push, and built the iOS app, but an exception occurred.
The android app did not throw any exceptions.

type User @model {
  id: ID!
  name: String <-- new
}

An exception was thrown when the following code was executed.

final user = await datastore.query(
  Amp.User.classType,
  where: Amp.User.ID.eq(userId),
);

The error message displayed is as follows.

DataStoreException (DataStoreException(message: The operation couldn’t be completed. (SQLite.Result error 0.), recoverySuggestion: The operation couldn’t be completed. (SQLite.Result error 0.), underlyingException: The operation couldn’t be completed. (SQLite.Result error 0.)))

Stack trace when an exception is thrown.

#0      AmplifyDataStoreMethodChannel.query
package:amplify_datastore/method_channel_datastore.dart:73
<asynchronous suspension>
#1      AmplifyDataStore.query
package:amplify_datastore/amplify_datastore.dart:71
#2      DataStoreCategory.query
package:amplify_flutter/categories/amplify_datastore_category.dart:52
#3      UserRepository.fetch
package:flutter_template/…/user/user_repository.dart:14
<asynchronous suspension>
#4      _UserPageState._checkAndRegistUser
package:flutter_template/main.dart:262
#5      _UserPageState.initState

Platform
Amplify Flutter current supports iOS and Android. This issue is reproducible in (check all that apply):
[] Android
[x] iOS

Smartphone (please complete the following information):

• Device: [e.g. iPhone12 Pro Max (ios simulator)]
• OS: [e.g. iOS14.4]
• Version [flutter 1.22.6]

[haverchuck]

@Arosf Which version of amplify_datastore are you using?

[fjnoyp]

Thanks @Arosf we are able to reproduce this issue on our side and are looking into it.

[Arosf]

@haverchuck amplify_datastore version is 0.1.0

[fjnoyp]

Hi @Arosf the issue you encountered comes from the underlying Amplify iOS Library behavior. I have been in communication with their devs and created an issue on their Amplify iOS repo linked here: aws-amplify/amplify-swift#1083.

Once they fix the issue and we update our Amplify iOS Library dependencies, your problem will be resolved. I don't know how long this will take on their side but can provide updates as we investigate/triage it.

[Arosf]

@fjnoyp Thank you to the corresponding!

[fjnoyp]

Hi @Arosf after looking through our code more, we have a fix in place for this issue that you reported.

PR fix:
#439

I'll reopen this issue and mark it as pending this PR.

[HuiSF]

The fix for this issue has been released with version 0.2.3. When schema changes, DataStore will automatically clear local DB and recreate tables with the latest schema and resync data from cloud.