Fatal error: execution: there is no such file or directory

One 、 Problem description

stay ubuntu18.04 Compiled on Faster-lio Report errors ：

fatal error: execution:  There is no file or directory 
 #include <execution>

Two 、 resolvent

Need to put g++ Compiler updates to 9.0

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt update
sudo apt install gcc-9// Be careful gcc and g++ All are 9.0 Version above   Compile 
sudo apt install g++-9  //github This step is missing from the , Has been an error , use g++ --version  Check to know that you need to install  g++-9 

cd /usr/bin

sudo rm gcc g++
sudo ln -s gcc-9 gcc
sudo ln -s g++-9 g++ 

Then compile it again and it will pass .

Reprint link

[1] Little Hawking . stay ubuntu18.04 Install and run on Faster-lio [EB/OL]. https://blog.csdn.net/weixin_47552638/article/details/123724463, 2022-05-24/2022-06-24.