Hi,
Thank you for posting this on the forum,
Have you checked if the install files have been properly installed? I would check if they are listed in the programs and features list - called Autodesk Material Library 2018
Also a quick thing to try would be to right click the Revit icon and run it with admin rights.
Best Regards,
thanks for answering my question but It doesn't work the material library is installed and the second step I doesn't work
And what if you access it through the Manage tab? I would assume the outcome is the same?
I would be more than happy to take a look myself if possible,
I don't have any mind.
You maybe missing the entire Material Library. Re-download the program completely to your HDD before installing it. make sure to pick Content and Material packs under installation options.
I try your way but I doesn't work, but I install 2017 and it's work perfectly on the same laptop so I think it's from the version of the revit 2018.