question: `LLVM ERROR: ` error with no indication

[YuLuo]

env:

• ubuntu 20.04
• python3

root@yuluo-Inspiron-3647:/usr/share/bcc/tools# ./tcptop
LLVM ERROR: 
root@yuluo-Inspiron-3647:/usr/share/bcc/tools# python3 ./tcptop
LLVM ERROR: 

Any replies would be appreciated!