@xiong.zhang
The git lfs pull instruction has been executed. Could you help me see if the branch is correct?
@jojok use Ubuntu 20.04 is allowed，branch is also right
I just discussed with my colleague that there is a problem of insufficient memory when communicating with you in WeChat. You can try to clear the memory first or you can copy the code to another computer to compile and have a look, or use our official website on another computer. Download the source code steps to try