Weird Node-sass Error in Ember-CLI

gistfile1.txt

> [email protected] install /Users/danielfinlay/Documents/Development/Issue Tracker/Raincheck/node_modules/ember-cli-sass/node_modules/broccoli-sass/node_modules/node-sass
> node build.js

child_process: customFds option is deprecated, use stdio instead.
child_process: customFds option is deprecated, use stdio instead.
  CXX(target) Release/obj.target/binding/binding.o
In file included from ../binding.cpp:1:
../node_modules/nan/nan.h:481:19: error: no type named 'ExternalAsciiStringResource' in 'v8::String'; did you mean 'ExternalStringResource'?
      v8::String::ExternalAsciiStringResource *resource) {
      ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
                  ExternalStringResource
/Users/danielfinlay/.node-gyp/1.2.0/deps/v8/include/v8.h:2016:19: note: 'ExternalStringResource' declared here
  class V8_EXPORT ExternalStringResource
                  ^
In file included from ../binding.cpp:1:
../node_modules/nan/nan.h:480:36: error: redefinition of 'NanNew'
  NAN_INLINE v8::Local<v8::String> NanNew(
                                   ^
../node_modules/nan/nan.h:475:36: note: previous definition is here
  NAN_INLINE v8::Local<v8::String> NanNew(
                                   ^
../node_modules/nan/nan.h:2103:12: error: no member named 'IsExternalAscii' in 'v8::String'; did you mean 'IsExternal'?
  if (str->IsExternalAscii()) {
           ^~~~~~~~~~~~~~~
           IsExternal
/Users/danielfinlay/.node-gyp/1.2.0/deps/v8/include/v8.h:1980:8: note: 'IsExternal' declared here
  bool IsExternal() const;
       ^
In file included from ../binding.cpp:1:
../node_modules/nan/nan.h:2104:23: error: no type named 'ExternalAsciiStringResource' in 'v8::String'; did you mean 'ExternalStringResource'?
    const v8::String::ExternalAsciiStringResource* ext;
          ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
                      ExternalStringResource
/Users/danielfinlay/.node-gyp/1.2.0/deps/v8/include/v8.h:2016:19: note: 'ExternalStringResource' declared here
  class V8_EXPORT ExternalStringResource
                  ^
In file included from ../binding.cpp:1:
../node_modules/nan/nan.h:2105:16: error: no member named 'GetExternalAsciiStringResource' in 'v8::String'; did you mean 'GetExternalOneByteStringResource'?
    ext = str->GetExternalAsciiStringResource();
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
               GetExternalOneByteStringResource
/Users/danielfinlay/.node-gyp/1.2.0/deps/v8/include/v8.h:2083:40: note: 'GetExternalOneByteStringResource' declared here
  const ExternalOneByteStringResource* GetExternalOneByteStringResource() const;
                                       ^
In file included from ../binding.cpp:1:
../node_modules/nan/nan.h:2105:9: error: assigning to 'const v8::String::ExternalStringResource *' from incompatible type 'const v8::String::ExternalOneByteStringResource *'
    ext = str->GetExternalAsciiStringResource();
        ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:2106:11: error: assigning to 'const char *' from incompatible type 'const uint16_t *' (aka 'const unsigned short *')
    *data = ext->data();
          ^ ~~~~~~~~~~~
7 errors generated.
make: *** [Release/obj.target/binding/binding.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:267:23)
gyp ERR! stack     at emitTwo (events.js:85:13)
gyp ERR! stack     at ChildProcess.emit (events.js:153:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:1044:12)
gyp ERR! System Darwin 14.0.0
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"