I've used hierarachyviewer earlier, but on android emulator. It works absolutely fine when I use it on the emulator. However it does not work with Samsung Galaxy TAB 7.0, with Android 2.3.4. This is the log, that I get 11:04:22 E/hierarchyviewer: Unable to get view server version from device 303599 64881B00EC 11:04:22 E/hierarchyviewer: Unable to get view server protocol version from devi ce 30359964881B00EC 11:04:24 E/hierarchyviewer: Unable to debug device 30359964881B00EC 11:05:05 E/hierarchyviewer: Unable to get view server version from device 303599 64881B00EC 11:05:05 E/hierarchyviewer: Unable to get view server protocol version from devi ce 30359964881B00EC 11:05:07 E/hierarchyviewer: Unable to debug device 30359964881B00EC 11:09:38 E/hierarchyviewer: Unable to get view server version from device 303599 64881B00EC 11:09:38 E/hierarchyviewer: Unable to get view server protocol version from devi ce 30359964881B00EC 11:09:40 E/hierarchyviewer: Unable to debug device 30359964881B00EC I'm also not using hierarchyviewer in the debug mode, just running the application. Thanks.