$ mdfind 'com_apple_xcode_dsym_uuids = *'  

Here’s our Xcode indentation settings:

And here are two lines of shell script that will help you clean up your already messed up code base

find ./ -iname '*.[hcm]' -type f -exec gsed -i 's/\t/    /g' {} \;
find ./ -iname '*.[hcm]' -type f -exec gsed -i '/^[ \t]*$/! { s/[ \t]*$//g }' {} \;

What they’ll do is, 1st of all replacing all existing tabs by four spaces. The second command takes care of trailing whitespace (but not in lines that only contain whitespace), because we also hate that!

All that require the GNU version of sed. OSX ships with the BSD version, so you need to install it via

brew install gnu-sed

Here’s what you need:

@property (nonatomic, retain) UITableView *internalTableView;

- (void)loadView;
{
    [super loadView];
    self.internalTableView = self.tableView;
    self.view = [[[UIView alloc] initWithFrame:self.view.frame] autorelease];
    [self.view addSubview:self.tableView];
    self.tableView.frame = self.view.bounds;
}

- (void)viewDidUnload;
{
    self.internalTableView = nil;
    [super viewDidUnload];
}

- (void)dealloc;
{
    internalTableView = nil;
    [super dealloc];
}

// here's the finesse
- (UITableView *)tableView;
{
    if (!self.internalTableView) {
        return [super tableView];
    }
    return self.internalTableView;
}

git tag -d v1.2.3
git push origin :refs/tags/v1.2.3

So what’s this… The first line is quite obviously deleting the tag from the local working tree. The second line deletes the tag from origin in the same way as you would delete a branch on origin, by pushing noting to it’s destination.

To be complete here’s how you would delete a remote branch from origin:

git push origin :my-branch

Here’s how I fixed it:

sudo /usr/bin/xcode-select -switch /Applications/Xcode.app/Contents/Developer

Since upgrading to OS X 10.7.3 you see this Xcode build warning?

Icon specified in the Info.plist not found under the top level app wrapper: Icon-72.png (-19007)
iPad: Icon.png: icon dimensions (57 x 57) don't meet the size requirements. The icon file must be 72x72 pixels, in .png format (-19014)

This is going to turn into an validation error as soon as you try to upload a new build to the AppStore™.

Here’s the fix:

Install a new version of the Application Loader. The download link is hard to find (hard to google), so here’s one for version 2.5.1 (most current when writing this article).

The most current version can be found under “Manage your applications” in iTunesConnect.

This happens when Xcode’s indexing process fails for some reason. This can be a header file is missing to code highlighting (which can be different from the compiler in some cases) or in some cases a bad #define. The problem is that it fails silently so you cannot fix it.

After having this problem with a big project I stumbled onto the magic hint on Stack Overflow.  After you quit Xcode enter this into a shell:

defaults write com.apple.dt.Xcode IDEIndexingClangInvocationLogLevel 3

After this you should open the project and see messages like this:

Xcode: IDEIndexingClangInvocation: Failed to save PCH file: /Users/user/Library/Developer/Xcode/DerivedData/Project-drsrrgaenperjadmqslqfxyqcqyt/Index/PrecompiledHeaders/Some-Prefix-cgepzuvkwimbsvcmqrbbpeoyhdpz_ast/Some-Prefix.pch.pth

Looking through these messages will show you what goes on and might help you finding the problem.

For me it was just copying header files from a framework on the place the Clang parser was looking for them.

Here’s a little script you can run, that enables the remote Web Inspector via gdb (via @atnan).

Here’s to all the mobile devs!

Here’s how it’s done. In your Application Delegate add the following code:

+ (void)initialize;
{
    [NSClassFromString(@"WebView") performSelector:@selector(_enableRemoteInspector)];
}

With this you can direct your browser to http://localhost:9999 to open the web inspector.

Have fun!

You can symbolicate individual addresses from the crashlog in the terminal using a command named `atos` (if you’ve got the dSYM file for your build). Here’s an example:

atos -arch armv7 -o MyApp.app.dSYM/Contents/Resources/DWARF/MyApp 0x0000babe

This will output you the line of code related to this address. I.e.:

+[MyHappyClass fullOfFail] (in MyApp) + 429

Pro Tip: not entering the address when calling the atos command leaves you in STDIN mode. Here you can add multiple addresses without restarting the tool.