About Mesh error

HI,
I’ve been trying to mesh some model, but the warning sign occurs like below


Is this sign is significant? if not, How can I fix this problem?
I have no idea while I read the document.
Please help;…

Best Regards,
Jake.

Hi jake_lee

please have a look at this article to learn on how to improve your mesh

on just a first look you can try to remove these mounting holes here:

You can use the CAD Mode as described here to do this:

Please let us know if this helps you.

Best regards
Sebastian