Mail App crashes consistently a few seconds after launch

My Mail app crashes consistently a few seconds after launch. I will paste the log error at the end of this post.

I have a gmail and an exchange account. Things I have tried after reading some other articles:

• Removed the file: ~/Library/Containers/com.apple.mail and tried launching again. No change.
• I set up both email accounts from scratch in a new user account and everything works fine.

So basically, I'd like to start from scratch in my user account. How would I go about doing this?

Thanks,

Anna

Console log termination error:

12/26/13 12:38:38.883 PM Mail[334]: *** Assertion failure in -[MFEWSCopyItemsRequestOperation initWithCoder:], /SourceCache/Mail/Mail-1827/FrameworkTargets/MailFramework/EWS/Items/MFEWSCopyI temsRequestOperation.m:65

source folder ID 'AQMkADBmMzQwZjY3LTA1ZjEtNGY1Ny05NWQyLWM0ZjgyOTM5MmI1ZAAuAAADCvYiyzXa1US4glo6Kp 9eAgEAk3GTNn8fpEKIFYVMY6De7QAAAXlKugAAAA==' or destination folder ID '(null)' for item copy is invalid

(

0 MailCore 0x0000000109356c8c -[MCAssertionHandler _handleFailureWithPreamble:description:arguments:] + 141

1 MailCore 0x0000000109356afd -[MCAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 215

2 Mail 0x000000010902c495 -[MFEWSCopyItemsRequestOperation initWithCoder:] + 441

3 Foundation 0x000000010a759e22 _decodeObjectBinary + 2534

4 Foundation 0x000000010a75af2f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774

5 Foundation 0x000000010a75b12b -[NSArray(NSArray) initWithCoder:] + 202

6 Foundation 0x000000010a759e22 _decodeObjectBinary + 2534

7 Foundation 0x000000010a7592dd _decodeObject + 288

8 Mail 0x0000000109036060 -[MFEWSGateway playbackRequestsFromOfflineCacheWithConnection:error:] + 544

9 Mail 0x0000000109021c18 -[MFEWSAccount connectAndAuthenticate:] + 820

10 Mail 0x0000000109021868 -[MFEWSAccount authenticatedConnection] + 302

11 Mail 0x0000000109036797 -[MFEWSGateway connection] + 50

12 Mail 0x000000010903491d -[MFEWSGateway sendMessage:forRequest:] + 40

13 Mail 0x000000010904af09 -[MFEWSRequestOperation executeOperation] + 110

14 MailCore 0x00000001093a7f0a -[MCMonitoredOperation main] + 211

15 Foundation 0x000000010a74a591 -[__NSOperationInternal _start:] + 631

16 Foundation 0x000000010a74a23b __NSOQSchedule_f + 64

17 libdispatch.dylib 0x000000010d4dd2ad _dispatch_client_callout + 8

18 libdispatch.dylib 0x000000010d4e17ff _dispatch_async_redirect_invoke + 154

19 libdispatch.dylib 0x000000010d4dd2ad _dispatch_client_callout + 8

20 libdispatch.dylib 0x000000010d4df09e _dispatch_root_queue_drain + 326

21 libdispatch.dylib 0x000000010d4e0193 _dispatch_worker_thread2 + 40

22 libsystem_pthread.dylib 0x000000010d7b6ef8 _pthread_wqthread + 314

23 libsystem_pthread.dylib 0x000000010d7b9fb9 start_wqthread + 13

)

12/26/13 12:38:38.887 PM Mail[334]: *** Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <MFEWSCopyItemsRequestOperation 0x6000002bc4a0> for the key path "newEWSItemIdStrings" from <MFEWSCopyItemsResponseOperation 0x6000002bc500> because it is not registered as an observer.'

*** First throw call stack:

(

0 CoreFoundation 0x000000010d21a41c __exceptionPreprocess + 172

1 libobjc.A.dylib 0x000000010ac8ce75 objc_exception_throw + 43

2 CoreFoundation 0x000000010d21a2cc +[NSException raise:format:] + 204

3 Foundation 0x000000010a7ad4e1 -[NSObject(NSKeyValueObserverRegistration) _removeObserver:forProperty:] + 480

4 Foundation 0x000000010a7ad25a -[NSObject(NSKeyValueObserverRegistration) removeObserver:forKeyPath:] + 119

5 Mail 0x000000010902c660 -[MFEWSCopyItemsRequestOperation dealloc] + 54

6 Mail 0x000000010902c4a5 -[MFEWSCopyItemsRequestOperation initWithCoder:] + 457

7 Foundation 0x000000010a759e22 _decodeObjectBinary + 2534

8 Foundation 0x000000010a75af2f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774

9 Foundation 0x000000010a75b12b -[NSArray(NSArray) initWithCoder:] + 202

10 Foundation 0x000000010a759e22 _decodeObjectBinary + 2534

11 Foundation 0x000000010a7592dd _decodeObject + 288

12 Mail 0x0000000109036060 -[MFEWSGateway playbackRequestsFromOfflineCacheWithConnection:error:] + 544

13 Mail 0x0000000109021c18 -[MFEWSAccount connectAndAuthenticate:] + 820

14 Mail 0x0000000109021868 -[MFEWSAccount authenticatedConnection] + 302

15 Mail 0x0000000109036797 -[MFEWSGateway connection] + 50

16 Mail 0x000000010903491d -[MFEWSGateway sendMessage:forRequest:] + 40

17 Mail 0x000000010904af09 -[MFEWSRequestOperation executeOperation] + 110

18 MailCore 0x00000001093a7f0a -[MCMonitoredOperation main] + 211

19 Foundation 0x000000010a74a591 -[__NSOperationInternal _start:] + 631

20 Foundation 0x000000010a74a23b __NSOQSchedule_f + 64

21 libdispatch.dylib 0x000000010d4dd2ad _dispatch_client_callout + 8

22 libdispatch.dylib 0x000000010d4e17ff _dispatch_async_redirect_invoke + 154

23 libdispatch.dylib 0x000000010d4dd2ad _dispatch_client_callout + 8

24 libdispatch.dylib 0x000000010d4df09e _dispatch_root_queue_drain + 326

25 libdispatch.dylib 0x000000010d4e0193 _dispatch_worker_thread2 + 40

26 libsystem_pthread.dylib 0x000000010d7b6ef8 _pthread_wqthread + 314

27 libsystem_pthread.dylib 0x000000010d7b9fb9 start_wqthread + 13

)