Compiling Error with mranger and mbot and chromebook

#1

HI-
Have a class of kids that were using their mranger and programming fine a month ago…now everyone has the same compiling error. Any ideas?
MC

software: http://editor.makeblock.com/ide.html#
USB connection
mranger or mbot

Error:
"picked up java_tools_options:
Exception in thread “main” Java.awt.AWTError: Can’t connect to…

#2

Please take screen shots for the error pages; and take a shot video of the issue.

#3

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