fs unlinksynch error

Failures:

  1) common platform handler deleteJava should delete empty directories after removing source code in a java src path heirarchy
   Message:
     Error: EPERM, operation not permitted '/var/folders/k5/p44x4yn122s_gk2s0p0c7rm00000gn/T/test_plugman/project/dest'
   Stacktrace:
     Error: EPERM, operation not permitted '/var/folders/k5/p44x4yn122s_gk2s0p0c7rm00000gn/T/test_plugman/project/dest'
    at Object.fs.unlinkSync (fs.js:582:18)
    at Object.module.exports.deleteJava (/Users/timkim/repo/plugman/src/platforms/common.js:32:12)
    at null.<anonymous> (/Users/timkim/repo/plugman/spec/platforms/common.spec.js:105:20)
    at jasmine.Block.execute (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:1064:17)
    at jasmine.Queue.next_ (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2096:31)
    at jasmine.Queue.start (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2049:8)
    at jasmine.Spec.execute (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2376:14)
    at jasmine.Queue.next_ (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2096:31)
    at jasmine.Queue.start (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2049:8)
    at jasmine.Suite.execute (/Users/timkim/repo/plugman/node_modules/jasmine-node/lib/jasmine-node/jasmine-1.3.1.js:2521:14)

Finished in 0.025 seconds
11 tests, 13 assertions, 1 failure