Hi....You've presumably currently discovered that some Arduino portrays
expect you to introduce libraries. What may not be so clear is that a
few libraries have conditions on different libraries. So you really want
to introduce both the library your sketch utilizes just as the libraries
those libraries use, etc.
At the point when everything is done a good job for the library
creators, this is totally dealt with naturally by the Arduino IDE.
Lamentably, the creator of the library you're utilizing has not
accommodated that comfort, so somewhat more exertion is required on your
part. However, it's simple enough.