针对你遇到的 'std::this_thread' has not been declared 错误,这里有几个可能的解决方案,你可以按照以下步骤逐一排查和修复: 确认错误来源: 检查你的代码,找到报错的具体位置。通常这个错误意味着编译器在尝试编译使用 std::this_thread 的代码时,没有找到相应的声明。 检查编译环境: 确保你使用的编译器支持 C++...
1、头文件没加 2、调用函数者的头文件在XXX头文件的下方
1、头文件没加 2、调用函数者的头文件在XXX头文件的下方
Qterror---XXXhasnotbeendeclared Qterror---XXXhasnotbeendeclared 1、头⽂件没加 2、调⽤函数者的头⽂件在XXX头⽂件的下⽅
Qt error --- 'XXX' has not been declared,1、头文件没加2、调用函数者的头文件在XXX头文件的下方
/home/ros/RobCode/mobot/src/mobot/src/send_client.cpp:38:13: error: ‘rclcpp::executor’ has not been declared 38| rclcpp::executor::FutureReturnCode::SUCCESS) | ^~~~ make[2]: *** [CMakeFiles/send_client.dir/build.make:63:CMakeFiles/send_client.dir/src/send_client.cpp.o] 错误1...
你没有拉入"stdio.h" 或拉入头文件的顺序不正确。或你用的是unicode 版本。如果你用的是VS8以后的版本的话，选中memcpy,按下F12会出现memcpy所在的库文件这样你就知道拉入什么头文件了
error: "Node" has not been declared Nov 24, 2015 at 12:02pm osur(18) Good evening, I've been trying to write a linked list code for a while today, where I have two structs, one calling another. I also have a function, but attempting to pass the struct as an argument for the ...
Finished<<<teleop_tools[0.74s]Finished<<<mobot_follow[19.8s]---stderr:mobot/home/ros/RobCode/mobot/src/mobot/src/send_client.cpp:Infunction‘intmain(int,char**)’:/home/ros/RobCode/mobot/src/mobot/src/send_client.cpp:38:13:error:‘rclcpp::executor’ has not been declared38|rclcpp::...
1.晚上使用 VScode 写代码,编译时出现如下报错信息 "error: ‘ostream’ has not been declared".编译无法通过. error: ‘ostream’ has not been declared//ostream 未声明 2.产生上述报错时,源文件中包含了头文件 iostream.笔者第一反应,是和 C 语言下出现类似报错时一样,认为可能没有包含对应声明了 ostream...