Results 3 issues of hokori

```output 15:32:41: 为项目EasyCanvas执行步骤 ... 15:32:41: 配置没有改变, 跳过 qmake 步骤。 15:32:41: 正在启动 "/usr/bin/make" -j16 cd CustomWidgets/ && ( test -e Makefile || /opt/Qt5.14.2/5.14.2/gcc_64/bin/qmake -o Makefile /home/hokori/Documents/QtProj/EasyCanvas/CustomWidgets/CustomWidgets.pro -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug )...

my cross compile chain is aarch64-buildroot-linux-gnu, during the build process, it was found that many libraries could not be found

When I add dependencies using `FetchContent`, I can't find the header files in the main project.P