python - Problems with plugin/installer manager in QGIS 2.6.1 Debian

An error has occured while executing Python code:

Traceback (most recent call last):
  File "/usr/share/qgis/python/pyplugin_installer/installer_data.py", line 460, in xmlDownloaded
    if isCompatible(QGis.QGIS_VERSION, qgisMinimumVersion, qgisMaximumVersion):
  File "/usr/share/qgis/python/pyplugin_installer/version_compare.py", line 188, in isCompatible
    if len(maxVer)TypeError: object of type 'NoneType' has no len()

Python version:
2.7.6 (default, Mar 22 2014, 23:03:41) 

[GCC 4.8.2]

When trying to open the plugin manages on Qgis 2.6.1 I get the following error:

QGIS version:
2.6.1-Brighton Brighton, exported

Python path: ['/usr/share/qgis/python/plugins/processing', '/usr/share/qgis/python', u'/home/joseph/.qgis2/python', u'/home/joseph/.qgis2/python/plugins', '/usr/share/qgis/python/plugins', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.7', '/usr/lib/python2.7/dist-packages/ubuntu-sso-client', '/usr/share/qgis/python/plugins/fTools/tools']