Compiling error from Xcode

[ssrlive]

When I try to build my framework from Xcode IDE, I alwary meeting = note: ld: library not found for -lSystem error.
So I have to build it from Terminal typing command line by line, and this time there have no error happened any more.
How do I resolve this issue?

I followed this article https://github.com/thombles/dw2019rust/blob/master/modules/04%20-%20Build%20automation.md

Here is my project https://github.com/ShadowsocksR-Live/overtls#building-ios-framework-1