Serial.println with "?" or "!!!" causes upload to fail #2457
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Component: Bootloader
The bootloader is the program used to load the uploaded program into the microcontroller's memory
Type: Duplicate
Another item already exists for this topic
My upload to a Arduino Mega 2560 fails when I have "?" or "!!!" as shown below:
Serial.println("end of day?");
Serial.println("END OF DAY!!!");
This occurs with 1.5.7 and 1.5.8.
Here is the failed upload messages:
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