I am trying to use the titanium developer v.1.2.1 but i have some difficulty the simulators are not lunching!
for the iPhone simulator nothing happens it just goes like this and the simulator is not shown 

```
[INFO] Compiling JavaScript...one moment
[INFO] No JavaScript errors detected.
[INFO] One moment, building ...
[INFO] Titanium SDK version: 1.4.1.1
[INFO] iPhone Device family: iphone
[INFO] iPhone SDK version: 3.1

```

And for the Android ti says 

```
[INFO] Launching Android emulator...one moment
[INFO] Building HelloWorld for Android ... one moment
[INFO] Waiting for the Android Emulator to become available
[INFO] Copying project resources..
[INFO] Tiapp.xml unchanged, skipping class generation
[INFO] Manifest unchanged, skipping Java build
[ERROR] /Users/vladimirrobevski/Desktop/android-sdk-mac_x86/tools/apkbuilder
[INFO] Installing application on device
[ERROR] Failed installing com.devoncompanyinc.helloworld: pkg: /data/local/tmp/app.apk

```

Is someone having the same problem?How to fix this