ubuntu在arm平台下编译安装Qt5.15.2和PySide2(亲测可用)

一、安装Qt5.15.2

1.下载源码首先在官网下载Qt5.15.2的源码：https://download.qt.io/archive/qt/5.15/5.15.2/single/

2.先安装编译qt的环境

sudo apt-get update
sudo apt-get install build-essential libgl1-mesa-dev libglu1-mesa-dev freeglut3-dev gdb cmake libxcb-xinerama0-dev libfontconfig1-dev libfreetype6-dev '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev

在编译前，先检查一下本机是否有安装交叉编译工具，我们这里选用的交叉编译工具是aarch64-linux-gnu-g++ ，
在终端输入aarch64-linux-gnu- 然后按两次tab键 会看到下面列表，说明本机已经安装过了.
如果没有的话，需要先安装，可以通过命令先查看有哪些版本可以安装：sudo apt-cache search aarch64
3. 解压
输入命令 xz -d qt-everywhere-src-5.15.2.tar.xz 先将 qt-everywhere-src-5.15.2.tar.xz解压成qt-everywhere-src-5.15.2.tar
然后输入命令 tar xvf qt-everywhere-src-5.10.1.tar来解包。
4.进入源码文件目录
cd qt-everywhere-src-5.15.2

5.编译安装(must enable xcb here manually)

./configure -xcb（不能加sudo）

Choose “o” to install Qt open source version. 选择‘y’

make -j4
sudo make install

更新你的环境变量

你可能还需要更新你的 PATH 环境变量，以便可以在任何位置运行 Qt 程序。你可以通过编辑你的 shell 配置文件（例如 ~/.bashrc 或 ~/.zshrc）来实现这一点：

echo 'export PATH=/usr/local/Qt-5.x.y/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

替换 Qt-5.x.y 为你实际的 Qt 版本号。

6.通过终端安装一个QtCreator:

sudo apt-get install qtcreator

问题：但是安装完成后打开会提示：

以下插件有错误，无法载入：QmlDesigner  QmlProfiler  

插件初始化失败：cannot Create OpenGL context 。暂时没找到解决办法，所以只能自己源码编译

7.源码编译QtCreator：

git clone --recursive https://code.qt.io/qt-creator/qt-creator.git

后面编译部分参考官方wiki教程：Building Qt Creator from Git - Qt Wiki

参考链接：统信uos编译安装qt5.15.2和qtcreator_seedlint的博客-CSDN博客_uos 安装qtcreator

一、安装PySide2

1.Install PySide2 from whl

git clone https://github.com/chentongwilliam/PySide2-jetson-nano.git
pip3 install shiboken2-5.15.2.1-5.15.3-cp36-cp36m-linux_aarch64.whl
pip3 install shiboken2_generator-5.15.2.1-5.15.3-cp36-cp36m-linux_aarch64.whl
pip3 install PySide2-5.15.2.1-5.15.3-cp36-cp36m-linux_aarch64.whl

2.Or Install PySide2 from Source

环境要求：

before install PySide2, first we have to deal with some requirements: General requirements: Python: 3.5+, Qt: 5.12+, libclang: version10, CMake:3.1+, llvm: version10(clang10)

sudo apt install libclang-10-dev
sudo apt install llvm

Here I personally suggest use synaptic to manage library:

sudo apt-get install synaptic
synaptic

Then install the correct version(10) of libclang and llvm via synaptic.

download and build PySide2:

git clone http://code.qt.io/pyside/pyside-setup.git
cd pyside-setup/
git checkout 5.15.3

Finally, to install PySide2:

sudo apt install python3-pip
sudo python3 setup.py install --qmake=/usr/local/Qt-5.15.2/bin/qmake

copy fonts

sudo mkdir /usr/local/Qt-5.15.3/lib/fonts
sudo chmod 777 /usr/local/Qt-5.15.3/lib/fonts

then copy all fonts you like (for example all fonts in /usr/share/fonts/truetype/ubuntu/) to /usr/local/Qt-5.15.3/lib/fonts

报错：报“arm_release_ver of this libmali is 'g6p0-01eac0', rk_so_ver is '5'.”后闪退

apt install -y libgl1-mesa-glx libgl1-mesa-dri libglx-mesa0
reboot

人工智能编译方法，供参考：

PySide2是Qt的Python绑定库，它允许使用Python编写Qt应用程序。下面是在Ubuntu下编译安装PySide2的步骤：

1. 安装Qt5及相关依赖库：

sudo apt install qtbase5-dev qttools5-dev-tools libqt5svg5-dev libxml2-dev libxslt1-dev

1. 安装Python开发包：

sudo apt install python3-dev python3-pip

1. 安装PySide2的依赖库：

sudo apt install libxcb-xinerama0-dev libxcb-icccm4-dev libxcb-image0-dev libxcb-keysyms1-dev libxcb-render-util0-dev libxcb-xkb-dev libxkbcommon-x11-dev libxkbcommon-dev libfontconfig1-dev libfreetype6-dev libpng-dev libjpeg-dev libglib2.0-dev libicu-dev

1. 安装CMake：

sudo apt install cmake

1. 下载PySide2源代码：

git clone https://code.qt.io/pyside/pyside-setup.git
cd pyside-setup
git submodule update --init --recursive

1. 构建PySide2：

mkdir build
cd build
cmake ..
make

1. 安装PySide2：

sudo make install

完成安装后，可以在Python中导入PySide2模块进行测试：

python3
>>> from PySide2.QtWidgets import QApplication, QLabel
>>> app = QApplication([])
>>> label = QLabel('Hello, PySide2!')
>>> label.show()
>>> app.exec_()

这将创建一个简单的窗口，显示文本“Hello, PySide2!”

播放视频报错：defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

解决办法：

安装

sudo apt-get install  libqt5multimedia5-plugins 

sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev

ERROR: Feature 'gstreamer_1_0' was enabled, but the pre-condition 'libs.gstreamer_1_0' failed.
sudo apt-get update
sudo apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio
sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev

安装完成后：

把/usr/lib/aarch64-linux-gnu/qt5/plugins/mediaservice目录下的文件复制到/usr/local/Qt-5.15.2/plugins/mediaservice目录下

又有新的报错信息：Failed to load plugin '/usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstlibav.so': /lib/aarch64-linux-gnu/libgomp.so.1: 无法在静态 TLS 块中分配内存

export LD_PRELOAD=/usr/lib/aarch64-linux-gnu/libgomp.so.1

参考链接：https://github.com/chentongwilliam/PySide2-jetson-nano#install-pyside2