Fix when editors crashes on nonexistent Android API refresh

Script/AtomicEditor/ui/modal/build/platforms/AndroidSettingsWidget.ts

@@ -125,6 +125,8 @@ class AndroidSettingsWidget extends Atomic.UIWidget implements BuildSettingsWind
 
     refreshAndroidTargets() {
 
+        if (ToolCore.toolEnvironment.toolPrefs.androidSDKPath.length <= 0) return;
+
         var platform = <ToolCore.PlatformAndroid>ToolCore.toolSystem.getPlatformByName("ANDROID");
 
         platform.refreshAndroidTargets();