请教各位，我试图用rk_mpi_ao_test来测试音频，但运行命令时总是显示
root@luckfox:/oem/usr/bin# ./Rklunch.sh
bash: ./Rklunch.sh: No such file or directory
这个目录下所有的工具都是这样无法执行，请问是怎么回事？
系统是ubuntu，板子是pico plus

在luckfox pico plus上build ubuntu出现如下错误： sudo ./build.sh Cloning into '/home/newtonian/luckfox-pico/sysdrv/tools/board/ubuntu'... fatal: unable to access 'https://github.com/luckfox-eng33/pico_ubuntu.git/': GnuTLS recv error (-110): The TLS connection was non-properly terminated. fatal: clone of 'http...