Cannot install contextify 0.1.7

[isoloviev]

contextify@0.1.7 install /contextify
node-gyp rebuild

Traceback (most recent call last):
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/gyp_main.py", line 18, in
sys.exit(gyp.script_main())
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 534, in script_main
return main(sys.argv[1:])
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 527, in main
return gyp_main(args)
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 503, in gyp_main
options.circular_check)
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/init.py", line 129, in Load
params['parallel'], params['root_targets'])
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/input.py", line 2687, in Load
generator_input_info)
File "/usr/lib/node_modules/npm/node_modules/node-gyp/gyp/pylib/gyp/input.py", line 594, in LoadTargetBuildFilesParallel
parallel_state.pool = multiprocessing.Pool(8)
File "/usr/lib/python2.7/multiprocessing/init.py", line 232, in Pool
return Pool(processes, initializer, initargs, maxtasksperchild)
File "/usr/lib/python2.7/multiprocessing/pool.py", line 115, in init
self._setup_queues()
File "/usr/lib/python2.7/multiprocessing/pool.py", line 210, in _setup_queues
self._inqueue = SimpleQueue()
File "/usr/lib/python2.7/multiprocessing/queues.py", line 352, in init
self._rlock = Lock()
File "/usr/lib/python2.7/multiprocessing/synchronize.py", line 147, in init
SemLock.init(self, SEMAPHORE, 1, 1)
File "/usr/lib/python2.7/multiprocessing/synchronize.py", line 75, in init
sl = self._semlock = _multiprocessing.SemLock(kind, value, maxvalue)
OSError: [Errno 13] Permission denied

Node: v0.10.26
OS: Ubuntu 12.0.4

[isoloviev]

Changed r/w permissions for shared memory solved the problem. Thx for all.