Parece que você perdeu a libqt5gui5 dos seus pacotes de estágio
ATUALIZAÇÃO:
Então, para expandir minha resposta um pouco mais. Aqui está um exemplo simples de trabalho para capturar um aplicativo CMake / Qt / QML e torná-lo executável a partir do qtcreator
// main.cpp
#include <QGuiApplication>
#include <QQmlApplicationEngine>
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/qml/main.qml")));
return app.exec();
}
//main.qml
import QtQuick 2.4
import QtQuick.Window 2.1
import Ubuntu.Components 1.3
Window {
minimumHeight: units.gu(80)
minimumWidth: minimumHeight
MainView {
applicationName: "simpleapp"
anchors.fill: parent
Page {
title: "Hello world"
Button {
anchors.centerIn: parent
text: "Quit"
onClicked: Qt.quit()
}
}
}
Component.onCompleted: show()
}
#CMakeLists.txt
project(simpleapp)
cmake_minimum_required(VERSION 2.8)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
find_package(Qt5Core REQUIRED)
find_package(Qt5Gui REQUIRED)
find_package(Qt5Qml REQUIRED)
find_package(Qt5Quick REQUIRED)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
FILE(GLOB_RECURSE QML_FILES "${CMAKE_SOURCE_DIR}/*.qml")
add_custom_target(qml_files SOURCES ${QML_FILES})
set(CPP_FILES ${CMAKE_SOURCE_DIR}/main.cpp)
add_executable(${PROJECT_NAME} ${CPP_FILES} ${CMAKE_SOURCE_DIR}/qml.qrc)
qt5_use_modules(${PROJECT_NAME} Core Gui Qml Quick)
install(TARGETS ${PROJECT_NAME} DESTINATION /bin)
#snapcraft.yml
name: simpleapp
version: 1.0
summary: Qt Application Example
description: A simple app
confinement: devmode
apps:
simpleapp:
command: qt5-launch simpleapp
plugs:
- unity7
- home
parts:
application:
plugin: cmake
source: .
build-packages:
- qtbase5-dev
- qtdeclarative5-dev
stage-packages:
- libqt5gui5
- libgtk2.0-0
- ubuntu-sdk-libs # probably overkill but fine for this example
after: [qt5conf] # use the qt5-launch wiki part to setup env
Para criar o snap e executá-lo:
$ snapcraft snap
$ sudo snap install simpleapp_1.0_amd64.snap
$ simpleapp
E apenas use a configuração padrão de execução no qtcreator.