package appgrid 0.257 [origin: LP-PPA-appgrid-stable] failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1

estaba instalando el programa mediante la linea de comandos del ppa sudo add-apt-repository -y ppa:appgrid/stable pero luego aparecio el error de: Configurando appgrid (0.257) ...
/usr/share/appgrid/appdata/helpers.py:9: PyGIWarning: Soup was imported without specifying a version first. Use gi.require_version('Soup', '2.4') before import to ensure that the right version gets loaded.
  from gi.repository import GLib, GObject, Soup
Traceback (most recent call last):
  File "/usr/share/appgrid/appdata.py", line 159, in <module>
    rebuild_db()
  File "/usr/share/appgrid/appdata.py", line 65, in rebuild_db
    app = AptApp(pkgname, desktop=desktop_files[pkgname])
  File "/usr/share/appgrid/appdata/apps/aptapp.py", line 29, in __init__
    if path:
UnboundLocalError: local variable 'path' referenced before assignment
dpkg: error al procesar el paquete appgrid (--configure):
 el subproceso instalado el script post-installation devolvió el código de salida de error 1
Se encontraron errores al procesar:
 appgrid
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: appgrid 0.257 [origin: LP-PPA-appgrid-stable]
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.20.1-0ubuntu2.1
AptOrdering:
 appgrid: Install
 appgrid: Configure
 NULL: ConfigurePending
Architecture: i386
CrashDB: {"impl": "launchpad", "project": "appgrid"}
Date: Thu Jul 7 15:06:13 2016
ErrorMessage: el subproceso instalado el script post-installation devolvió el código de salida de error 1
InstallationDate: Installed on 2016-05-16 (51 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: appgrid
Title: package appgrid 0.257 [origin: LP-PPA-appgrid-stable] failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1
UpgradeStatus: No upgrade log present (probably fresh install)