The first thing that occurred to me is that my phone ran out of space and then the Bridge miscarried.
And then when I took a couple of applications of many megabytes achievement run the Bridge, but when trying to Write a file in my Movil I have this error.
due to the error the destination is not a file. it is a directory.
Put some logs to see the problem (maybe one of the values does changes it´s content (wrong))