Gtk-WARNING **: cannot open display:
by miwi365 from LinuxQuestions.org on (#5AVXF)
Hello,
i've just started using linux and i've already made few codes in linux command line.
i've made a client/server application in linux where the server send a video to the client.It worked very well(i use opencv for image processing).
Now i'm trying to dectect simple shapes of object in an image with opencv but when a run the code on linux, the cmake and make work very well.After that i do scp root@ID:/home/root to go on odroid-c2.
In the odroid-c2 when i run my program : ./Project i receive a message telling: Gtk-WARNING **: cannot open display:
Can someone help me?


i've just started using linux and i've already made few codes in linux command line.
i've made a client/server application in linux where the server send a video to the client.It worked very well(i use opencv for image processing).
Now i'm trying to dectect simple shapes of object in an image with opencv but when a run the code on linux, the cmake and make work very well.After that i do scp root@ID:/home/root to go on odroid-c2.
In the odroid-c2 when i run my program : ./Project i receive a message telling: Gtk-WARNING **: cannot open display:
Can someone help me?