正在ubuntu18.04编译PX4的代码，解决ignition-math库报错后，重新运行make px4_sitl gazebo，出现新的报错。

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[250/812] Generating romfs_extract.stamp
FAILED: ROMFS/romfs_extract.stamp
cd /home/lyq/github_project/PX4-Autopilot/build/px4_sitl_default/etc && /usr/bin/cmake -E remove_directory /home/lyq/github_project/PX4-Autopilot/build/px4_sitl_default/etc/* && /usr/bin/cmake -E tar xf /home/lyq/github_project/PX4-Autopilot/build/px4_sitl_default/romfs_files.tar && /usr/bin/cmake -E touch /home/lyq/github_project/PX4-Autopilot/build/px4_sitl_default/ROMFS/romfs_extract.stamp
CMake Error: cmake version 3.10.2
Usage: /usr/bin/cmake -E <command> [arguments...]
Available commands: capabilities              - Report capabilities built into cmake in JSON formatchdir dir cmd [args...]   - run command in a given directorycompare_files file1 file2 - check if file1 is same as file2copy <file>... destination  - copy files to destination (either file or directory)copy_directory <dir>... destination   - copy content of <dir>... directories to 'destination' directorycopy_if_different <file>... destination  - copy files if it has changedecho [<string>...]        - displays arguments as textecho_append [<string>...] - displays arguments as text but no new lineenv [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...- run command in a modified environmentenvironment               - display the current environmentmake_directory <dir>...   - create parent and <dir> directoriesmd5sum <file>...          - create MD5 checksum of filessha1sum <file>...         - create SHA1 checksum of filessha224sum <file>...       - create SHA224 checksum of filessha256sum <file>...       - create SHA256 checksum of filessha384sum <file>...       - create SHA384 checksum of filessha512sum <file>...       - create SHA512 checksum of filesremove [-f] <file>...     - remove the file(s), use -f to force itremove_directory dir      - remove a directory and its contentsrename oldname newname    - rename a file or directory (on one volume)server                    - start cmake in server modesleep <number>...         - sleep for given number of secondstar [cxt][vf][zjJ] file.tar [file/dir1 file/dir2 ...]- create or extract a tar or zip archivetime command [args...]    - run command and return elapsed timetouch file                - touch a file.touch_nocreate file       - touch a file but do not create it.
Available on UNIX only:create_symlink old new    - create a symbolic link new -> old