ubuntu16.04运行时报错[gazrbo.launch] is neither a launch file in package [bobac2_description] nor is [bobac2_description] a launch file name The traceback for the exception was written to the log file

这个错误提示表明在运行名为"gazrbo.launch"的launch文件时，在包"bobac2_description"中找不到该文件。或者，该包本身也不是一个launch文件。

可能的原因是您没有正确设置ROS环境变量，或者没有正确设置ROS_PACKAGE_PATH变量。请尝试运行以下命令：

source /opt/ros/<your-ros-version>/setup.bash

确保将<your-ros-version>替换为您正在使用的ROS版本。然后，尝试将ROS_PACKAGE_PATH设置为包含您的工作空间的路径。例如，如果您的工作空间位于/home/user/catkin_ws中，则可以运行以下命令：

export ROS_PACKAGE_PATH=/home/user/catkin_ws:$ROS_PACKAGE_PATH

如果问题仍然存在，请检查您的工作空间和包是否正确设置，并确保包含所需的launch文件。

相关问题

ubuntu16.04运行时报错CMake Error at bobac2_description/CMakeLists.txt:147 (add_dependencies): Cannot add target-level dependencies to non-existent target "bobac2_description_node". The add_dependencies works for top-level logical targets created by the add_executable, add_library, or add_custom_target commands. If you want to add file-level dependencies see the DEPENDS option of the add_custom_target and add_custom_command commands. CMake Error at bobac2_description/CMakeLists.txt:150 (target_link_libraries): Cannot specify link libraries for target "bobac2_description_node" which is not built by this project. -- Configuring incomplete, errors occurred! See also "/home/bobac3/ros_workspace/build/CMakeFiles/CMakeOutput.log". See also "/home/bobac3/ros_workspace/build/CMakeFiles/CMakeError.log". Makefile:2796: recipe for target 'cmake_check_build_system' failed make: *** [cmake_check_build_system] Error 1 CMake Error at bobac2_description/CMakeLists.txt:147 (add_dependencies): Cannot add target-level dependencies to non-existent target "bobac2_description_node". The add_dependencies works for top-level logical targets created by the add_executable, add_library, or add_custom_target commands. If you want to add file-level dependencies see the DEPENDS option of the add_custom_target and add_custom_command commands. CMake Error at bobac2_description/CMakeLists.txt:150 (target_link_libraries): Cannot specify link libraries for target "bobac2_description_node" which is not built by this project. -- Configuring incomplete, errors occurred! See also "/home/bobac3/ros_workspace/build/CMakeFiles/CMakeOutput.log". See also "/home/bobac3/ros_workspace/build/CMakeFiles/CMakeError.log". Makefile:2796: recipe for target 'cmake_check_build_system' failed make: *** [cmake_check_build_system] Error 1

这个错误可能是因为在运行CMake时，找不到名为"bobac2_description_node"的目标。这可能是因为在CMakeLists.txt文件中没有正确地定义目标或源文件。您可以检查一下CMakeLists.txt文件中的目标和源文件是否正确定义。另外，您可以尝试清理并重新构建项目，以确保没有编译错误。您也可以查看CMakeError.log和CMakeOutput.log文件，以获取更多关于错误的详细信息。

caffe protobuf java_ubuntu 16.04安装Caffe报错：undefined reference to `google::protobuf...

这个问题通常是因为缺少protobuf库的链接导致的。可以尝试以下步骤来解决这个问题：

1. 确认你已经正确安装了protobuf库。可以尝试使用以下命令来安装：

sudo apt-get install libprotobuf-dev protobuf-compiler

2. 确认你的Makefile或CMakeLists.txt文件正确地链接了protobuf库。可以尝试在这些文件中添加以下链接选项：

-lprotobuf -pthread

3. 如果以上步骤都无法解决问题，可以尝试手动编译和链接protobuf库。可以按照以下步骤来进行：

下载protobuf源码：

git clone https://github.com/protocolbuffers/protobuf.git

编译和安装protobuf库：

cd protobuf
./autogen.sh
./configure
make
sudo make install
sudo ldconfig

重新编译你的代码并链接protobuf库：

g++ -o your_program your_program.cpp -lprotobuf -pthread

希望这些步骤能够帮助你解决这个问题。