[AC-3309] bug

/usr/local/lib/node_modules/titanium/node_modules/longjohn/dist/longjohn.js:184 throw e; ^ TypeError: Cannot read property 'properties' of undefined at iOSBuilder.validate (/Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/iphone/cli/commands/_build.js:824:58) at exports.validatePlatformOptions (/Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/titanium-sdk/lib/titanium.js:615:69) at /Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/cli/commands/build.js:192:19 at callCommandValidate (/usr/local/lib/node_modules/titanium/lib/cli.js:844:7) at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:548:21 at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:224:13 at iterate (/usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:131:13) at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:142:25 at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:226:17 at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:553:34 --------------------------------------------- at run (/Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/node-appc/lib/subprocess.js:59:8) at /Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/iphone/cli/lib/detect.js:410:9 at /Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/async/lib/async.js:511:21 at /Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/async/lib/async.js:227:13 at /Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/async/lib/async.js:111:13 at Array.forEach (native) at _each (/Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/async/lib/async.js:32:24) at async.each (/Users/li003/Library/Application Support/Titanium/mobilesdk/osx/3.2.1.GA/node_modules/async/lib/async.js:110:9) please help me.how to solve this bug..??