CMake Error at /opt/ros/melodic/share/catkin/cmake/platform/lsb.cmake:8 (string):
string no output variable specified
Call Stack (most recent call first):
/opt/ros/melodic/share/catkin/cmake/all.cmake:164 (include)
/opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:20 (include)
CMakeLists.txt:58 (find_package)
CMake Error at /opt/ros/melodic/share/catkin/cmake/platform/lsb.cmake:21 (string):
string no output variable specified
Call Stack (most recent call first):
/opt/ros/melodic/share/catkin/cmake/all.cmake:164 (include)
/opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:20 (include)
CMakeLists.txt:58 (find_package)
请问你解决了吗