ld: file is universal (2 slices) but does not contain a(n) armv7s slice: /Users/bevin1984/ios开发/erpUnitStore.ios/erpUnitStore/libCorePlot-CocoaTouch.a for architecture armv7s clang: error: linker command failed with exit code 1 (use -v to see invocation)
后来找了好多地方，在老外的一个博客发现了解决方法：This error did not allow me to run on my iPad. So I did a bit of searching and found that I have to change the Build Active Architecture Only to YES. After that, it all worked fine. This setting is in the build setting. Hope this helps someone!
打个项目的Build Setting 找到 Build Active Architecture Only 把里头的Debug和Release 都改成YES