[Buildroot] Gtk-warning

[gdbabu Krishnan]

HI,

i have successfully build and got image file for raspberry pi, now my
problem is when i run Gtk Application under " /usr/bin/ " directory file
name is
 "gtk3-demo" i got following,

Unable to init server: could not connect : connection refused

(gtk3-demo :136) : Gtk-warning **: cannot open display

after this warning  nothing to happen,

kindly help me to solve these problems.

Thank you
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