背景:一个线程通过signal-slot发送PVCI_CAN_OBJ类型的值到主线程中, 错误提示: QObject::connect: Cannot queue arguments of type 'PVCI_CAN_OBJ' (Make sure 'PVCI_CAN_OBJ' is registered using qRegisterMetaType().) 原因:在线程中通过signal-slot传递信息时,参数默认放到队列中的,但PVCI_CAN_OBJ是自定义的参数,不是Qt自带的参数…
学习Qt有一点时间了,但之前都是在debug版本下进行编译运行,偶然切换到release版本下,却出现了如下错误: 错误提示: This application failed to start because it could not find or load the Qt platform plugin “windows”. Reinstall the application may fix this problem. 上网 Baidu / Google一下,得到如…
上午在linux环境下,使用QT编译一段C++代码,出现下列错误: 最近在stackoverflow上找到了答案: i was also having the same problem so what i did is For linux sudo apt-get install g++ sudo apt-get install libgl1-mesa-dev libglu1-mesa-dev and then closed the qt creator and restarted it and…
出现错误: Xcode not set up properly. You may need to confirm the license agreement by running / 解决办法如下: Xcode 8版本以上的 1: vi打开文件 Qt_install_folder/5.7/clang_64/mkspecs/features/mac/default_pre.prf (具体的地址需要根据自己的安装路径找) 2: 找到下列内容 isEmpty($$list($$system("/usr…