I, first time in this forum, hope I'm in right one!I already used XCODE 8 to develope, run, archive and submit to appStore.Since I upgraded to XCODE 9, I can't run on device. (and I suppose can't submit archive...)As suggested by APPLE documentation, I use "Automatically manage signing" with team, provisioning file and Signing Certificate iPhone developer.All settings seems to be ok.I build appSwift4: Succeeded but with warning:Warning: unable to build chain to self-signed root for signer "iPhone Developer: name (xxxxxxxxxx)"When I run app on Simulator, everything is ok.When I run app on iPadAir device, app crash with this output:dyld: Library not loaded: @rpath/libswiftCore.dylib Referenced from: /var/containers/Bundle/Application/-------------/appSwift4.app/appSwift4 Reason: no suitable image found. Did find: /private/var/containers/Bundle/Application/-------------/appSwift4.app/Frameworks/libswiftCore.dylib: code signing blocked mmap() of '/private/var/containers/Bundle/Application/-------------/appSwift4.app/Frameworks/libswiftCore.dylib'Something broken in keyChain...? I revoked every Certificate and keys . Then recreate via XCODE automatism. I get same warning and same result.HELP!thanksm2U