I have a problem to use kdevelop

Dear KDE,

I have been used kdevelop on ubuntu 14.04. Revently, I am trying to upgrade
OS to ubuntu 18.04. But I got the following problem. When I try to import a
project, I can't select any file as you can see in the first pic. So, I
check the terminal, I can see the following erro or you can see the 2nd
pic:
//////////////////////////////////////////////////////
kdevelop.plugins.konsole: Failed to load 'konsolepart' plugin
kdevplatform.shell: Could not load plugin "kdevkonsoleview" , it reported
the error: "Failed to load 'konsolepart' plugin" Disabling the plugin now.
kdevplatform.shell: Could not load plugin "kdevperforce" , it reported the
error: "The variable P4CONFIG is not set. Is perforce installed on the
system?" Disabling the plugin now.
kdevelop.plugins.qthelp: qmake query returned error: ""
qrc:///qml/area_code.qml:70:9: Type NewsFeed unavailable
qrc:///qml/NewsFeed.qml:24:1: module "QtQuick.XmlListModel" is not installed
//////////////////////////////////////////////////////

I also tried to use AppImage, but I got the same problem.

BTW, my environment is ubuntu 18.04, i9-9980hk, Quadro-T2000.

Could you help me to solve this problem?


-- 
*Lee, Chung Hyun*
Graduate Research Associate
lee.4542-ZbGKxL/[email protected]
ElectroScience Lab., ECE Department
The Ohio State University