Having trouble with #include files

:frowning: Arduino 1.6.3 When I #include a library that #includes another the IDE can't seem to find the library even if it is an Arduino core library (SPI.h in this case)

Add the other library #include in your sketch code

It's a limitation of how Arduino chooses libraries to build. The library examples should show the SPI library being included, like in the Ethernet library examples.