Objective C batchUploadFiles gives error: "missing required field 'session_id'" or "Garbage at end."

[DboxDeveloper]

Hi,

I am getting the error 

DropboxBadInputError[{
ErrorContent = "Error in call to API function \"files/upload_session/finish_batch\": request body: entries.cursor: missing required field 'session_id'";
RequestId = 0af1f37eb6e9ebc3e7ea0695db52c593;
StatusCode = 400;
UserMessage = nil;
}];

And

"DropboxClientError[{\n    NSError = \"Error Domain=NSCocoaErrorDomain Code=3840 \\\"Garbage at end.\\\" UserInfo={NSDebugDescription=Garbage at end.}\";

Search for the 

[[DBClientsManager authorizedClient].filesRoutes
                                batchUploadFiles:uploadFilesUrlsToCommitInfo
                                queue:nil

inside the code. 

I posted the entire method because I was worried that some part of the method maybe affecting the the batch upload. 

The begin upload method works like this 

1) it finds the photos that are present in the dropbox,

2) it compares it with photos present in the app,

3) then it deletes photos and other files that are in dropbox that are not present in the app or need to be deleted

4) Finally through batchupload it uploads all the photos that are not present into dropbox.

I really need help to fix this , been searching through the internet and trying different approaches but can't find an answer. Hopping someone can help

 Update:(easier to implement code for anyone who wants to help)

Here is the entire code

https://github.com/git-tyl/WineCellarProblemCode/blob/master/problemUploadingDropboxCode.m

[Greg-DB]

@rharter Thanks for the report! Your code does look simpler/correct, so I don't think I have a workaround to offer in this case. We'll look into it.