Linux error: No module named pyaes

[leonrenner]

Hello together,
I'm a bit new to Linux and I wanted to install the wallet on Linux. I did everything that was said in the readme file but when I want to execute ./electrum I get this error:
No module named 'pyaes'. Try 'sudo pip install '

When I put in 'sudo pip install pyaes' it says that the requirement is already satisfied. Has anyone already had this error and can tell me what to do?

Thanks in advance!