The result of this code is that url is null

```
NSString* home = [NSHomeDirectory() stringByAppendingPathComponent:@"/Library/Application Support/"];
NSURL *url = [NSURL URLWithString:home];

```

and so is this:

```
NSString* home = [NSHomeDirectory() stringByAppendingPathComponent:@"/Library/Application Support/"];
home = [home stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url = [NSURL URLWithString:home];

```