"TypeError: 'NoneType' object is not callable" on update

[ToZ]

Xubuntu 14.04 Beta 1
When update menulibre, the following is displayed:

Setting up menulibre (2.0.2-1) ...
Exception ignored in: <bound method Popen.__del__ of <subprocess.Popen object at 0xb6f0bacc>>
Traceback (most recent call last):
  File "/usr/lib/python3.4/subprocess.py", line 897, in __del__
TypeError: 'NoneType' object is not callable
Exception ignored in: <bound method Popen.__del__ of <subprocess.Popen object at 0xb6f0bbcc>>
Traceback (most recent call last):
  File "/usr/lib/python3.4/subprocess.py", line 897, in __del__
TypeError: 'NoneType' object is not callable

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: menulibre 2.0.2-1
ProcVersionSignature: Ubuntu 3.13.0-14.34-generic 3.13.5
Uname: Linux 3.13.0-14-generic i686
ApportVersion: 2.13.2-0ubuntu5
Architecture: i386
CurrentDesktop: XFCE
Date: Tue Mar 4 20:22:05 2014
InstallationDate: Installed on 2014-02-26 (7 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140225)
PackageArchitecture: all
SourcePackage: menulibre
UpgradeStatus: No upgrade log present (probably fresh install)