trying to debug write error

Got file: css-update.css file:///storage/sdcard0/css-update.css
Writing...
processMessage failed: Message: S01 File919907909 {"lastModifiedDate":1393536705000,"fullPath":"file:\/\/\/storage\/sdcard0\/css-update.css","type":"text\/css","name":"css-update.css","size":0}
processMessage failed: Error: [object Object]
processMessage failed: Stack: undefined
contents of file now 'some sample text'