Impossible to import Spleeter/Deezer environment

Hello,
When trying to import Spleeter/Deezer environment to Anaconda.Navigator, I get this error message :

ScannerError('while scanning for the next token', None, "found character '%' that cannot start any token", )

I don't know what the problem is. I have already tried to redownload the spleeter-master zip but it didn't work.
FYI, I have a PC with Windows 10.

Please, could someone help me with this issue ? Thanks very much in advance for your help and time !

Best regards,

80anny

Reproduce the environment import on Windows 10 using Anaconda Navigator and the Spleeter/Deezer environment from the spleeter-master archive. Start by locating the environment definition that Navigator scans and inspect the reported YAML parsing failure around the '%' character. Done means identifying the invalid environment content or import condition and confirming the result with a fresh import attempt.

Written by the indexing model from the issue text.