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SPI.h include missing for W5100 MQTT Ethernet Gateway #601
Removal of SPI.h (#555 )include might have killed the W5100 MQTT Gateway according to reports on the forum.
Wondering why our Jenkins builds doesn't catch this.
same here building the GatewaySerial
I'm betting we're both forgetting some configuration step that needs to be better documented as this was all working when I programmed a gateway a month ago, or perhaps this is something to do with 2.0?
EDIT: truncating the above error as it was due to me using an old version of the Arduino GUI, upgrading to 1.7.11 eliminated that issue, though the OP of SPI missing is still relevant