QML模塊未安裝錯誤：在嵌入式Linux上運行Qt app

Question

我試圖在某個TI板上啟動我的交叉編譯的GUI Qt應用程序。 我使用此命令啟動應用程序：

QT_DEBUG_PLUGINS=1 QT_PLUGIN_PATH=/root/qt-5.2.1-install/plugins LD_LIBRARY_PATH=/root/qt-5.2.1-install/lib/ ./simple_qml_ui -platform linuxfb

不幸的是發生錯誤：

QFactoryLoader::QFactoryLoader() checking directory path "/root/qt_app/styles" ... 
QFactoryLoader::QFactoryLoader() checking directory path "/root/qt-5.2.1-install/plugins/styles" ... 
QQmlApplicationEngine failed to load component 
qrc:/main.qml:3 module "QtQuick.Window" is not installed
qrc:/main.qml:1 module "QtQuick" is not installed
qrc:/main.qml:2 module "QtQuick.Controls" is not installed
qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
qrc:/main.qml:3 module "QtQuick.Window" is not installed
qrc:/main.qml:1 module "QtQuick" is not installed
qrc:/main.qml:2 module "QtQuick.Controls" is not installed
qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
qrc:/main.qml:3 module "QtQuick.Window" is not installed
qrc:/main.qml:1 module "QtQuick" is not installed
qrc:/main.qml:2 module "QtQuick.Controls" is not installed
qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed
qrc:/main.qml:3 module "QtQuick.Window" is not installed
qrc:/main.qml:1 module "QtQuick" is not installed
qrc:/main.qml:2 module "QtQuick.Controls" is not installed
qrc:/main.qml:4 module "QtQuick.Dialogs" is not installed

我錯過了一些重要的部署步驟嗎？ 我該如何解決？

Answer 1

這個答案與主題創建者平台不匹配，但我最近在Windows下遇到了同樣的錯誤並發現了這個問題。

對於在Windows下遇到此問題的其他人，有以下解決方案：

.\windeployqt.exe <project-path> --release --qmldir <qml-dir> 

qml-dir示例：C：\\ Qt \\ 5.11.0 \\ mingw53_32 \\ qml

在我的情況下，我不得不從\\ bin文件夾中另外復制以下dll：

libgcc_s_dw2-1.dll, libstdc++-6.dll, libwinpthread-1.dll

Answer 2

事實證明，您只需要將Qt安裝文件夾中的plugins目錄復制到您的app文件夾即可。