In the app folder there should be a directory called .sencha, that has two subdirectories, each containing, among others, the file sencha.cfg. There you'll find the settings. I've used the CFG-file located in .sencha\app.
same problem here. I can run sencha cmd just while no other program is running.. and still getting error: no such property: 'create' while i am creating new project... I have 4Gb, i thing it should be enough memory to develop HTML/JS aplication..