xcode+3.0.1.patch

diff --git a/node_modules/xcode/lib/pbxProject.js b/node_modules/xcode/lib/pbxProject.js
index 068548a..b478056 100644
--- a/node_modules/xcode/lib/pbxProject.js
+++ b/node_modules/xcode/lib/pbxProject.js
@@ -1678,8 +1678,7 @@ function correctForFrameworksPath(file, project) {
 
 function correctForPath(file, project, group) {
     var r_group_dir = new RegExp('^' + group + '[\\\\/]');
-
-    if (project.pbxGroupByName(group).path)
+    if (project.pbxGroupByName(group)&&project.pbxGroupByName(group).path)
         file.path = file.path.replace(r_group_dir, '');
 
     return file;