UIFlow "Invalid Syntax"?
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 I am trying to run a blockly program from flow.m5stack.com, the M5StickC plus shows "Invalid syntax". I see no indications or errors in UIFlow. How do I debug this? 
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 Are you running the latest firmware version? 
 it is often caused by version mismatch.
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 This was caused by a missing double quotation mark in a file name in an "Execute code" block..... 
