Pop os 19.10 Open and GUI confusion

Issue:
I connot open my citra.i have make it successfully without no error.But it do not work when i click it icon.I cannot get GUI.And via terminal i input ‘citra’ ,it works.Even,i successfully install pokmn,and try to open the game without GUI.So,problems are here:
1.How can i get GUI to use?
2.If cannot,How can i open a game?it seems installed successfully.what is the next step?

System Information

Diagnostic Log
[email protected]:~$ citra --help
Usage: citra [options]
-g, --gdbport=NUMBER Enable gdb stub on port NUMBER
-i, --install=FILE Installs a specified CIA file
-m, --multiplayer=nick:[email protected]:port Nickname, password, address and port for multiplayer
-r, --movie-record=[file] Record a movie (game inputs) to the given file
-p, --movie-play=[file] Playback the movie (game inputs) from the given file
-d, --dump-video=[file] Dumps audio and video to the given video file
-f, --fullscreen Start in fullscreen mode
-h, --help Display this help and exit
-v, --version Output version information and exit

Upload your log file as an attachment by dragging & dropping.
[ 2.883443] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883523] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883591] Frontend citra/citra.cpp:operator():244: 99%
[ 2.883644] Service.AM core/hle/service/am/am.cpp:InstallCIA:375: Installed /home/rayjue/baidunetdiskdownload/Pok/Pokemon Y.cia successfully.

In order to save a copy of the log, follow this guide:
https://community.citra-emu.org/t/how-to-upload-the-log-file/296

In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.