cp:無法創建普通文件：權限不夠

sudo cp ./1.txt /usr/local/bin ...

linux構建Qt程序報錯：:-1: error: Cannot run compiler 'clang++'. Output:

工具-選項-構建和運行-構建套件（Kit）-Desktop Qt 5.9.8 GCC 64bit（默認）-編譯器選GCC(x86 64bit in /usr/bin)-調試器選System GDB a ...

linux下安裝Qt后構建程序報錯：Error while building/deploying project test (kit: Desktop Qt 5.6.3 GCC 64bit) When

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