Warning occurred during code compilation

[pengfan2]

Dear Professor, hello:
When we are executing make COMPILER=auto - j80, we encounter the following problem
Error code display:

Traceback (most recent call last):
File "src/pack.py",  line 331, in <module>
raise Exception('ERROR: unable to generate git diff')
Exception: ERROR: unable to generate git diff
WARNING: pack.py script failed. Falling back to shell script.

But I have already installed Python. Below is my Python version

lan@lan-X10DAi :~/Desktop $Python -- version
Python 2.7.18
lan@lan-X10DAi :~/Desktop $python3-- version
Python 3.8.10
lan@lan-X10DAi :~/Desktop$

At present, I don't know how to solve this problem and look forward to your answer.