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parallels desktop sorry this application cannot run under a virtual machine 
The parallels desktop reports an error when running some games, so this application cannot run under a virtual machine Open the registry (win+r enter regedit), and then find -
brew Error: Could not create /usr/local/Cellar 
After the mac is upgraded to 10.13, you cannot use brew to install software. Solution sudo mkdir/usr/local/Cellar sudo chmod a+w/usr/local/Cellar sudo mkdir/usr/local/opt -
ios 11.1 (15B93) xcode 
Cause: The solution to upgrade xcode manually 1. Copy an old SDK and rename it to the SDK version required for real machine testing; To do this, find the path:/Applications/Xcode. app/Contents/Developer/Platforms/iPhone -
Ios dictionary array sorting 
NSArray *sortDescriptors = [NSArray arrayWithObject:[NSSortDescriptor sortDescriptorWithKey:@"level" ascending:Y… -
Judge whether it is ios11 
if (@available(iOS 11, *)) { } -
'NSInternalInconsistencyException', reason: 'UICollectionView received layout attributes for a cell with an index path that does not exist: 
'NSInternalInconsistencyException', reason: 'UICollectionView received layout attributes for a cell with an index path t… -
Ios ipad UIAlertController crashes 
//Judge that the runtime class is an iPad. If it is, return true. Otherwise, return false+(BOOL) IsIpad {if ([UIDevice currentDevice] userInterfaceIdiom]==UIUserInterf -
About the problem that iPhone 6s button cannot be clicked The phenomenon is that using other models and simulators is OK, but using the real iPhone 6s will result in a touch OK, but the click event problem cannot be responded by clicking the key. Finally, it is found that the problem is because a library is referenced, and the library uses something like - (void) touchesBegan: (NSSet *) touches w -
Everything's okay Many things have happened in this period of time, and the practice of Zen is not in vain. Finally, they have learned not to be persistent. Let them let it be. -
Ios disables a page navigation gesture return - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:YES]; self.navigationController.interactiveP…