When I use some a ruby function of my ruby module my ruby script exit
and throw an error which looks like:
ruby: xcb_in.c:566: xcb_request_check: Assertion `!reply' failed.
I understand that it is related to the xcb_request_function but when I
check my code I don't see any error.
I have no xcb_in.c file
What kind of error the message "Assertion ... failed" is related to?
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