Plotly arduino library invalid

I keep getting error messages when trying to upload simple example code for a plotly test. It seems there are issues with the library but after moving some things around and updating nothing is changing…

Arduino: 1.6.10 (Windows 7), Board: “Adafruit HUZZAH ESP8266, 80 MHz, 115200, 4M (3M SPIFFS)”

O:\Google Drive\Businesses&Projects\Arduino\Plotly_Temp_Test\Plotly_Temp_Test.ino:12:26: fatal error: avr/pgmspace.h: No such file or directory

#include <avr/pgmspace.h>

                      ^

compilation terminated.

exit status 1
Error compiling for board Adafruit HUZZAH ESP8266.
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\examples: C:\Users\Steven\Documents\Arduino\libraries\examples
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\plotly_streaming_serial: C:\Users\Steven\Documents\Arduino\libraries\plotly_streaming_serial
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\plotly_yun: C:\Users\Steven\Documents\Arduino\libraries\plotly_yun
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\readme_images: C:\Users\Steven\Documents\Arduino\libraries\readme_images
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\examples: C:\Users\Steven\Documents\Arduino\libraries\examples
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\plotly_streaming_serial: C:\Users\Steven\Documents\Arduino\libraries\plotly_streaming_serial
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\plotly_yun: C:\Users\Steven\Documents\Arduino\libraries\plotly_yun
Invalid library found in C:\Users\Steven\Documents\Arduino\libraries\readme_images: C:\Users\Steven\Documents\Arduino\libraries\readme_images