Unable to open BAR file
The blackberry-signer tool cannot read the BAR file you specified on the command line. You may not have permission to access this file, or the file may be missing or corrupted.
Verify that you have permission to access the file and that it exists at the location you provided on the command line. If the file exists and you have access to it, then try repackaging your project using the blackberry-packager tool.