Cannot find executable for CFBundle CertUIFramework.axbundle

Question

Final Edit-

Temporary workaround: click iOS Simulator > Reset Content and Settings... and run again.

This error message may reappear at random. For me, it happens when I launch a different application. There are several threads in Apple dev forums and in StackOverflow about this problem, but none have a definitive answer. This seems to be a SDK error to be fixed in the next Xcode version.

Updated: October 3.

CREDIT - Please check this answer - Xcode 5 Error CertUIFramework.axbundle

Further Edit
Although this was potentially the issue resolution at the time. I believe some of the newer answers below relating to the better touch tool are in fact the correct resolutions.

After reading Kirill's answer I did some digging as I didn't want to disable BetterTouchTool for everything just the "iOS Simulator" and you can. Open the "iOS Simulator" and will it as the active app go to the BTT drop-down menu from the top bar (of that screen if you have more than one) and select "Disable BTT for Current App". It will turn to a play icon when it's disabled. Make sure the app name on the bar is still "iOS Simulator" as mine jumped to "Finder" a few times when I clicked the top bar!

Now re-set the simulator (if it doesn't work) and rebuild. You shouldn't get the error! :) Don't forget to clear the error if it's still there. ;)

BTT seems to remember what apps it's disabled for (or at least it does when you close and re-open the app that's disabled I haven't tried a system re-boot yet).

Its easy. Go iOS simulator and reset content and setting.

Thanks

If you are using XCode-5 then just reset the simulator "Reset Content and Settings" and run once again

So I was having this error too in Xcode 5 and 5.1. I wanted to figure out if it's Xcode bug or something else, so I did a fresh install of Mavericks 10.9.2 and Xcode 5.1. Everything seemed fine after multiple tests.

Here is where the problem began. I put the apps and settings that I mostly use and the error came back. So I deleted everything and started adding everything one by one. After couple days I had bingo! The problem is with BetterSnapTool and BetterTouchTool

Update 12.12.2014

Just started using Xcode 6.1 and noticed that this bug seems to be gone at least with Xcode 6.1 simulators and BTT 0.9985 versions.

Update: As GasB pointed out, it is possible to disable BTT for certain apps. So just disable it for iOS Simulator. You just have to remember not to use gestures while using the simulator as that triggers the error message.

Simple solution:

Remove the ticks in preference pane, reset simulator and do clean build. The error message will disappear. .

I had the same problem and solved it setting the 'Localization native development region' to match my systems region. In my case from 'en' to 'de'. The referenced files are stored in localized versions in your filesystem. So this setting is used to identify the needed version.

You can find that setting in your project settings at 'Info' -> 'Custom iOS Target Properties'.

Resetting the simulator ‘fixes’ it because it turns the accessibility support off. You can normally achieve the same by simply disabling the ‘Accessibility Inspector’ in the ‘Settings’ app.

If, however, you need it enabled, particularly hate this error message, and are feeling adventurous then you can use the following monkey patches to silence the error: https://gist.github.com/alloy/9277316. (Be sure to NOT include this in your release builds.)