java.lang.NullPointerException: This exception has no message.

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via by Unknown author, 1 year ago
This exception has no message.
via by Unknown author, 10 months ago
This exception has no message.
via Stack Overflow by user1934999
, 2 years ago
This exception has no message.
at processing.serial.Serial.write(Unknown Source)
at undefined.sketch_jan14a.draw(
at processing.core.PApplet.handleDraw(Unknown Source)
at Source)

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