Question

I am getting the following error while running an app on iOS simulator 4.2/4.3. It’s working fine with iOS 5.

dyld: Library not loaded: /System/Library/Frameworks/Accounts.framework/Accounts
  Referenced from: /Users/User/Library/Application Support/iPhone Simulator/4.3/Applications/FBFD053F-E816-4114-AFEB-D90A6A67259B/SampleApp.app/SampleApp
  Reason: image not found

I am using the AssetsLibrary and OpenCV frameworks in my app.
I am not getting the cause of error.

Answer 1

You are getting this error because Accounts.framework is only available in iOS 5.0 or later. So you are not able to run it on iOS 4.2/4.3.

You can also mark Accounts.framework as optional. In Xcode, select Targets > Build Phases > Link with binary libraries > Accounts.framework and mark as optional.

Also please make sure to skip this code(code that requires iOS 5.0 or greater) in iOS 4.3. You can use the following code to check this :

NSString *reqSysVer = @"5.0";
NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
if ([currSysVer compare:reqSysVer options:NSNumericSearch] != NSOrderedAscending) {

     //Add any code that requires iOS 5.0
}