I have a problem with the Facebook SDK and the HTC Desire. I programmed the following http://android10.org/index.php/articleslibraries/290-facebook-integration-in-your-android-applicatio. When I start my app on the ASUS Transformer everything goes fine, but when i tried my app on a HTC Desire it doesn't work! I got following Errorcode in logcat "ERROR/Facebook-ProxyAuth(1384): Failed to read calling package's signature." Does anyone know a solution for that?