I downloaded Xcode 9 beta recently, and when I tried to run my app in the simulator it is not getting installed. I am getting this error in my Xcode every time I try to run
change deployment target as per requirement. select project > GENERAL > DEPLOYMENT TARGET also check ios version of your device
I had the same issue. Log shows it's an error caused by Google Signin:
FunctionName=-[MobileInstallationHelperService stageItemAtURL:completion:], SourceFileLine=392, NSUnderlyingError=0x7f891e9a1270 {Error Domain=MIInstallerErrorDomain Code=4 "Failed to remove ACL" UserInfo={NSLocalizedDescription=Failed to remove ACL, FunctionName=-[MIFileManager _removeACLAtPath:isDir:error:]
However it works on iOS 9 & 10 simulator.
I got same error and I was using Cocoapods in my project and for me help just update pods.
If you are using CocoaPods in your project please have a look at this answer: https://stackoverflow.com/a/44533287/221194
Changing the status of the pods subdirectory helped me with my project.
I had a similar issue when installing my App on the IOS simulator (with Xcode 9).
I found the issue (at least for my case), it was due to an unauthorized key (Privacy - Location When In Use Usage Description) in the info.plist of the Watch App.
I have moved this key to the info.plist of the WatchKit Extension and now the App installs again.
I hope it will help others people having the same issue.
I ran into this issue in Xcode 9.0 beta 5 after renaming a project that contained an iOS and watchOS app. To fix, I recreated the iOS target.