T507设备中运行qml编写的程序，提示module未安装，如下图。
这是因为程序运行时未找到QML库导致的，需要在qtenv.sh文件或者系统环境变量中导出QML库在嵌入式设备文件系统中的位置，修改后如下：
1 export QML2_IMPORT_PATH=$QT_ROOT/qml
qtenv.sh文件完整内容如下：
1 export QTDIR=/usr/local/Qt_5.12.5
2 if [ -d $QTDIR ];then
3
4 #source /dbusrun.sh
5 #dbus-uuidgen > /etc/machine-id
6 #export DBUS_SESSION_BUS_ADDRESS=`cat /tmp/dbusaddr`
7
8 export QT_ROOT=$QTDIR
9 export PATH=$QTDIR/bin:$PATH
10 export LD_LIBRARY_PATH=$QTDIR/lib:/usr/lib/cedarx/:$LD_LIBRARY_PATH
11
12 export QT_QPA_PLATFORM_PLUGIN_PATH=$QT_ROOT/plugins
13 export QT_QPA_PLATFORM=linuxfb:tty=/dev/fb0
14 export QT_QPA_FONTDIR=$QT_ROOT/fonts
15 export QML2_IMPORT_PATH=$QT_ROOT/qml
16
17 #export LD_PRELOAD=/usr/lib/libts.so
18 #/usr/lib/preloadable_libiconv.so:
19
20 TouchDevice=ilitek_ts
21 for InputDevices in /sys/class/input/input*
22 do
23 DeviceName=`cat $InputDevices/name`
24 #echo $InputDevices name:$DeviceName
25 if [ $DeviceName == $TouchDevice ];then
26 TouchDeviceNum=${InputDevices##*input}
27 export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/event$TouchDeviceNum
28 echo "add "/dev/input/event$TouchDeviceNum "to Qt Application."
29 break
30 fi
31 done
32 if [ ! -n "$TouchDeviceNum" ]; then
33 echo "Error:Input device $TouchDevice can not be found,plz check it!"
34 fi
35
36 export QT_QPA_PLATFORM=eglfs
37 #export QT_QPA_GENERIC_PLUGINS=tslib
38 export QT_QPA_GENERIC_PLUGINS=evdevtouch
39 export QT_QPA_EGLFS_INTEGRATION=eglfs_mali
40 #export QT_QPA_FB_HIDECURSOR=1
41 #export QT_QPA_EGLFS_HIDECURSOR=1
42 #export QT_QPA_EGLFS_ROTATION=90
43
44 export QWS_MOUSE_PROTO=
45 export DBUS_SESSION_BUS_ADDRESS=`cat /tmp/dbusaddr`
46 mkdir -p /dev/shm
47 ulimit -c unlimited
48 FRAMEBUFFER=/dev/fb0 ScreenDemo &
49 #FRAMEBUFFER=/dev/fb0 Launcher &
50 #FRAMEBUFFER=/dev/fb1 MediaUI &
51 echo "find qt5 installed done"
52 fi
标签：QT,QPA,module,T507,export,qml,PATH,dev From： https://www.cnblogs.com/oliudaneng/p/18128921