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I had tried to install libdrat-dev but it didn't work

Chuck
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NAM
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  • Welcome to Robotics, NAM. Please copy/paste the text and for errors instead of posting images of errors. When you say you tried installing libdrat-dev but it didn't work, what didn't work? I would bet you got a different error message that another library won't be installed. If you try installing that, you'll get another error message, etc., until you finally get down to the underlying conflict. A similar problem was discussed here on the ROS Answers site – Chuck Jan 04 '24 at 15:27
  • I believe this question is a duplicate of another and I'll close this with a link to the other question. – Chuck Jan 04 '24 at 15:28
  • Sorry about that. This is the first time i aks a question in a forum. I has seen the site you gave but I can't find the way to fix that error. Can you show me with this error:

    The following packages have unmet dependencies: libdart6.13-external-convhull-3d-dev : Breaks: libdart-external-convhull-3d-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed libdart6.13-external-odelcpsolver-dev : Breaks: libdart-external-odelcpsolver-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

     – NAM Jan 06 '24 at 03:28
  • You have to keep trying to install the next named item until eventually you get to the root of the conflict. Once you resolve that then you can work your way back up again. – Chuck Jan 08 '24 at 21:50

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