title: iCloud syncing Ubiquity error
body: <p>I integrated iCloud in my application and the syncing works, but sometimes I get this error:</p>
  
  <pre><code>+[PFUbiquityTransactionLog loadPlistAtLocation:withError:](324): CoreData: Ubiquity:  
  Encountered an error trying to open the log file at the location: &lt;PFUbiquityLocation: 
  0x1993c0&gt;: /private/var/mobile/Library/Mobile Documents/ ...
  Error: Error Domain=NSCocoaErrorDomain Code=256 "The operation couldn’t be completed. 
  (Cocoa error 256 - The item failed to download.)"
  
  -[PFUbiquityTransactionLog loadComparisonMetadataWithError:](220): CoreData: Ubiquity:  
  Error encountered while trying to load the comparison metadata for transaction log: 
  &lt;PFUbiquityTransactionLog: 0x1a3d60&gt;
  transactionLogLocation: &lt;PFUbiquityLocation: 0x1993c0&gt;: /private/var/mobile/Library/Mobile Documents/
  transactionNumber: (null)
  
  Error: Error Domain=NSCocoaErrorDomain Code=134302 "The operation couldn’t be completed. 
  (Cocoa error 134302.)" UserInfo=0x1a50e0 {reason=Error during property list parsing during 
  import or opening of log file at location: &lt;PFUbiquityLocation: 0x1993c0&gt;:    
  /private/var/mobile/Library/Mobile Documents/ ... Error Domain=NSCocoaErrorDomain Code=256  
  "The operation couldn’t be completed. (Cocoa error 256 - The item failed to download.)"
  </code></pre>
  
  <p>No idea what it means, but if I wait a while, it seems that the iCloud merges are done... Anyone an idea how to solve this?</p>
  
  <p>I tried setting </p>
  
  <pre><code>[_document.managedObjectContext 
     setMergePolicy:NSMergeByPropertyStoreTrumpMergePolicy] 
  </code></pre>
  
  <p>but without any help...</p>
  
  <p>Thnx!</p>