Cannot save new data objects

When I try to save a new instance of an object, I get the following error message:

Entity with the specified ID cannot be found: Id - missing id

I am being sure not to set Object ID in the object I’m saving.

Here is the code I’m using to do the save:

    Responder *responder = [Responder responder:self selResponseHandler:@selector(responseHandlerForSave:) selErrorHandler:@selector(errorHandlerForSave:)];
    id<IDataStore> dataStore = [backendless.persistenceService of:[SavedMessage class]];
    [dataStore save:self responder:responder];

It is worth noting that this was working 24 hours ago, but now, with no changes to the code, I am getting the error message.

This is a regression which will be fixed asap. If you update the following two libraries from our github repository (click on “View Raw” to download), it will work:
https://github.com/Backendless/ios-SDK/blob/master/SDK/lib/backendless/backendless.a
https://github.com/Backendless/ios-SDK/blob/master/SDK/lib/CommLibiOS/CommLibiOS.a

The backend has been patched with a fix. Client library update is optional at this point.