Duplicate .framework XCode build from Unity Append.

Unity and Xcode building problem on simulator.
Our environment information for under the Unity platform.
Unity version 5.1.2f1 Personal
Xcode Version 6.4 (6E35b)
Device Filter (FAT armv7 + x86)

We gotta tricky problem with “Frameworks” on Xcode.
When i generate a project files for Xcode from Unity, I see many duplicate in framework section.
When build the project as same name, we have to select the type from 2 choices “Replace” or “Append”.
We choose “Additional”.
Please help me fix this bug. Please see attached file.


Use the Replace option when rebuilding Xcode projects.

Also, please post in the correct forum. This forum is for Unity Ads.

To report the issue as a bug, use Help > Report a bug… from the Unity Editor menu.

OK. Thanks
But, I want to know why can not append, and how to fix it?
And I can not find this path … Help → Report a bug