appgrid.py crashed with GLib.Error in on_launch(): g-shell-error-quark: Text was empty (or contained only whitespace) (1)

started to launch google docs app, and it crashed

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: appgrid 0.215 [origin: unknown]
ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CrashDB: {"impl": "launchpad", "project": "appgrid"}
CurrentDesktop: Unity
Date: Thu Jul 30 02:40:32 2015
ExecutablePath: /usr/share/appgrid/appgrid.py
InstallationDate: Installed on 2015-07-27 (2 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/share/appgrid/appgrid.py
PythonArgs: ['/usr/share/appgrid/appgrid.py']
SourcePackage: appgrid
Title: appgrid.py crashed with GLib.Error in on_launch(): g-shell-error-quark: Text was empty (or contained only whitespace) (1)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo