Launching wallframe_core_tileflow fails.

[yifange]

This occurs when you run roslaunch wallframe_core wallframe_core_tileflow for the first time after restarting roscore.

Maybe the app manager does not make the /wallframe/core/available_apps parameter ready when the app menu reads it. Relaunch wallframe_core_tileflow can start the menu correctly.

Traceback (most recent call last):
  File "/home/kel/jhu-interaction/wallframe/wallframe_core/scripts/wallframe_app_tileflow_menu_two_hands.py", line 570, in <module>
    menu = AppMenu()
  File "/home/kel/jhu-interaction/wallframe/wallframe_core/scripts/wallframe_app_tileflow_menu_two_hands.py", line 226, in __init__
    self.init_menu_widget()
  File "/home/kel/jhu-interaction/wallframe/wallframe_core/scripts/wallframe_app_tileflow_menu_two_hands.py", line 297, in init_menu_widget
    res_list = [item[1] + '/menu_icon.png' for item in self.app_paths_.items()]
AttributeError: 'AppMenu' object has no attribute 'app_paths_'
[wallframe_app_tileflow_menu-4] process has died [pid 2737, exit code 1].
log files: /home/kel/.ros/log/4f4d46bc-c98e-11e3-9d26-00e081de4653/wallframe_app_tileflow_menu-4*.log