Ubuntu Software center not opening unable to write to cache

Ubuntu Software center not opening unable to write to cache

I used the command software-center and received the following,
WARNING:root:trying to fix not writable cache directory
ERROR:root:failed to fix not writable cache directory Traceback (most recent call last): File "/usr/share/software-center/softwarecenter/paths.py", line 111, in try_to_fixup_root_owned_dir_via_remove os.rmdir(directory) OSError: [Errno 30] Read-only file system: '/home/darius/.cache/software-center' WARNING:root:found not writable '/home/darius/.cache/software-center' dir, trying to fix WARNING:softwarecenter.fixme:logs to the root logger: '('/usr/share/software-center/softwarecenter/log.py', 104, '')' 2013-06-02 11:25:27,847 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/share/software-center/softwarecenter/log.py', 104, '')' 2013-06-02 11:25:27,847 - root - WARNING - found not writable '/home/darius/.cache/software-center' dir, trying to fix Traceback (most recent call last): File "/usr/bin/software-center", line 40, in import softwarecenter.log File "/usr/share/software-center/softwarecenter/log.py", line 112, in safe_makedirs(softwarecenter.paths.SOFTWARE_CENTER_CACHE_DIR) File "/usr/share/software-center/softwarecenter/utils.py", line 816, in safe_makedirs os.makedirs(dir_path) File "/usr/lib/python2.7/os.py", line 157, in makedirs mkdir(name, mode) OSError: [Errno 30] Read-only file system: '/home/darius/.cache/software-center.0'
any ideas as to how to fix this?