Failed to load Python extension for LZ4 support. LZ4 compression will not be available.

[hypatiash]

Hello,

I'm using ubuntu 18.04 and ROS Melodic.I installed lz4 support by pip install lz4 or pip install roslz4 --extra-index-url https://rospypi.github.io/simple/. Basicially I installed every way that I have found. And when I check if there is an extension for lz4, I can see that my requirements satisfied. For example, for pip install lz4 I get info message that says _Requirement already satisfied: lz4 in /home/pc/.local/lib/python3.9/site-packages (4.3.2)
_
But when I type command that needs to lz4 compression, I get the same error message. What should I do?