I tried running the audio tinyshield library and it requires a file that isn't there, this is most likely a noob mistake but I can't get it to work
Error:
Arduino: 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Board: "TinyScreen+, Default"

In file included from C:\#####\###\#########\Arduino\libraries\WaveHC\WaveHC.cpp:15:0:

C:\#####\###\#######\Arduino\libraries\WaveHC/mcpDac.h:26:20: fatal error: avr/io.h: No such file or directory

#include <avr/io.h>

                    ^

compilation terminated.

exit status 1
Error compiling for board TinyScreen+.

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I am seeing this error as well with the 1.8.4 Arduino IDE on my mac.  Does anyone else have this problem or have a possible solution?  Below is the error that is showing up in my IDE.
Arduino: 1.8.4 (Mac OS X), Board: "TinyScreen+, Default"

In file included from XXXXX/Documents/Arduino/libraries/WaveHC/WaveHC.cpp:15:0:
XXXXX/Documents/Arduino/libraries/WaveHC/mcpDac.h:26:20: fatal error: avr/io.h: No such file or directory
#include <avr/io.h>

                    ^
compilation terminated.
exit status 1
Error compiling for board TinyScreen+.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I just got a message back from the Tinycircuits team, they put the right library in and now it works

Thank you for posting the new library!!!!  It works great.  I am curious as to why TinyCircuits hasn't updated the documentation and provided a repo to pull this library from?

For anyone who tries the library example program: Be sure to add the SdFat library.  It can be downloaded in the 1.8.5 IDE using the Library Manager.  It is needed for the example code to function.