cocoaPods安装时出现： ERROR: While executing gem ... (Errno::EPERM) Operation ...

source 'https://github.com/CocoaPods/Specs.git' platform :ios, "8.0" tar...

$ pod repo remove LDBusMediatorSpecs

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange...

-(NSString *)bytesToAvaiUnit:(int64_t)bytes { if(bytes < 1024) // B { ...

- (UIImage*)getSubImage:(CGRect)rect { CGImageRef subImageRef = CGImageC...

- (void) tableView:(UITableView *)tableView willDisplayCell:(UITableView...