'heroku pygame.error:Failed loading libasound.so.2

Help people, I have a project created with flask and this is running in heroku, the problem is when a try to use pygame, this return an error:

pygame.error: Failed loading libasound.so.2: libasound.so.2: cannot open shared object 
file: No such file or directory

that error give me an :

Internal Server Error
The server encountered an internal error and was unable to 
complete your request. Either 
the server is overloaded or there is an error in the application.

In my case I used windows and I tried to download. But,it has been impossible, I used "sudo apt-get install libasound2"



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