If you have run across this error recently: VerifyError: Error #1014: Class IIMEClient could not be found.
You may be wondering what it means, and more importantly how to fix it. What appears to be the sole cause of this error is your versions not matching up between your Flex/AIR SDK and the AIR application descriptor file. This can happen after you update/reinstall Flash Builder, or the SDK folder manually.
The fix is pretty easy: Just open your AIR descriptor file(generally the only XML file in the project src folder) and change the xmlns to the current version of the SDK you are using(1.5.3 => 2.0 for instance). See screenshot below for an example(warning: it’s big):