Ubuntu20.04 compilation problems

[1466758326]

In file included from /usr/include/pcl-1.10/pcl/pcl_macros.h:77,
from /usr/include/pcl-1.10/pcl/PCLHeader.h:10,
from /usr/include/pcl-1.10/pcl/point_cloud.h:47,
from /opt/ros/noetic/include/pcl_ros/point_cloud.h:5,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/odometry_saver/src/odometry_saver.cpp:12:
/usr/include/pcl-1.10/pcl/pcl_config.h:7:4: error: #error PCL requires C++14 or above
7 | #error PCL requires C++14 or above
| ^~~~~
In file included from /usr/include/pcl-1.10/pcl/console/print.h:44,
from /usr/include/pcl-1.10/pcl/conversions.h:53,
from /opt/ros/noetic/include/pcl_ros/point_cloud.h:8,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/odometry_saver/src/odometry_saver.cpp:12:
/usr/include/pcl-1.10/pcl/pcl_config.h:7:4: error: #error PCL requires C++14 or above
7 | #error PCL requires C++14 or above
| ^~~~~
In file included from /usr/local/include/g2o/core/sparse_block_matrix.h:42,
from /usr/local/include/g2o/core/sparse_optimizer.h:34,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/hdl_graph_slam/include/g2o/robust_kernel_io.hpp:7,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/hdl_graph_slam/src/g2o/robust_kernel_io.cpp:3:
/usr/local/include/g2o/core/matrix_structure.h:57:19: error: ‘std::string_view’ has not been declared
57 | bool write(std::string_view filename) const;
| ^~~~~~~~~~~
make[2]: *** [hdl_graph_slam/CMakeFiles/hdl_graph_slam_nodelet.dir/build.make:141：hdl_graph_slam/CMakeFiles/hdl_graph_slam_nodelet.dir/src/g2o/robust_kernel_io.cpp.o] 错误 1
make[2]: *** 正在等待未完成的任务....
In file included from /usr/local/include/g2o/core/sparse_block_matrix.h:42,
from /usr/local/include/g2o/core/marginal_covariance_cholesky.h:34,
from /usr/local/include/g2o/core/linear_solver.h:33,
from /usr/local/include/g2o/core/block_solver.h:35,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/hdl_graph_slam/src/hdl_graph_slam/graph_slam.cpp:8:
/usr/local/include/g2o/core/matrix_structure.h:57:19: error: ‘std::string_view’ has not been declared
57 | bool write(std::string_view filename) const;
| ^~~~~~~~~~~
In file included from /opt/ros/noetic/include/pcl_ros/point_cloud.h:284,
from /home/peng-ubuntu/ros_ws/package_ws/interactive_slam/src/odometry_saver/src/odometry_saver.cpp:12:
/usr/include/pcl-1.10/pcl/pcl_config.h:7:4: error: #error PCL requires C++14 or above
7 | #error PCL requires C++14 or above

[cinogul]

Try this instead: catkin_make -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=14.