File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/core/window/window_sdl2.py", line 727, in mainloop
    self._mainloop()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/core/window/window_sdl2.py", line 460, in _mainloop
    EventLoop.idle()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 340, in idle
    self.dispatch_input()
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 325, in dispatch_input
    post_dispatch_input(*pop(0))
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/base.py", line 291, in post_dispatch_input
    wid.dispatch('on_touch_up', me)
  File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/uix/behaviors/button.py", line 179, in on_touch_up
    self.dispatch('on_release')
  File "kivy/_event.pyx", line 703, in kivy._event.EventDispatcher.dispatch
  File "kivy/_event.pyx", line 1214, in kivy._event.EventObservers.dispatch
  File "kivy/_event.pyx", line 1098, in kivy._event.EventObservers._dispatch
  File "/data/user/0/org.electrum.electrum/files/app/crystax_python/site-packages/kivy/lang/builder.py", line 64, in custom_callback
    exec(__kvlang__.co_value, idmap)
  File "<string>", line 23, in <module>
  File "kivy/_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "./electrum/gui/kivy/uix/dialogs/installwizard.py", line 583, in on_release
    self.run_next(*params)
  File "./electrum/plugins/trustedcoin/trustedcoin.py", line 534, in <lambda>
    f = lambda x: self.on_choice(wizard, seed, passphrase, x)
  File "./electrum/plugins/trustedcoin/trustedcoin.py", line 542, in on_choice
    self.create_keystore(wizard, seed, passphrase)
  File "./electrum/plugins/trustedcoin/trustedcoin.py", line 498, in create_keystore
    xprv1, xpub1, xprv2, xpub2 = self.xkeys_from_seed(seed, passphrase)
  File "./electrum/plugins/trustedcoin/trustedcoin.py", line 493, in xkeys_from_seed
    raise Exception('unrecognized seed length: {} words'.format(n))