Hi all,

          Hereby i am getting following error when i pressed the button to network interface. in bootstrap theme. Please give me the solution.

/usr/lib/lua/luci/dispatcher.lua:448: Failed to execute arcombine dispatcher target for entry '/admin/network/network'.
The called action terminated with an exception:
/usr/lib/lua/luci/model/network.lua:27: module 'ubus' not found:
    no field package.preload['ubus']
    no file './ubus.lua'
    no file '/usr/share/lua/ubus.lua'
    no file '/usr/share/lua/ubus/init.lua'
    no file '/usr/lib/lua/ubus.lua'
    no file '/usr/lib/lua/ubus/init.lua'
    no file './ubus.so'
    no file '/usr/lib/lua/ubus.so'
    no file '/usr/lib/lua/loadall.so'
stack traceback:
    [C]: in function 'assert'
    /usr/lib/lua/luci/dispatcher.lua:448: in function 'dispatch'
    /usr/lib/lua/luci/dispatcher.lua:195: in function </usr/lib/lua/luci/dispatcher.lua:194>