Unity3D发布安卓时遇到的问题：Bundle Identifier has not been set up correctly，解决办法如下：

错误提示：

Error building Player: UnityException: Bundle Identifier has not been set up correctly

Please set the Bundle Identifier in the Player Settings. The value must follow the convention 'com.YourCompanyName.YourProductName' and can contain alphanumeric characters and underscore.

Each segment must not start with a numeric character or underscore.

解决方法：

打开File=>build settings => player settings=>在Inspector找到Bundle Identifier 选项，原来是：com.YourCompanyName.YourProductName

后两项改个名字就行了。