This is a common problem when importing assets online that were made by other people. It says that the file names are too long and that it is unable to process the path.
If you go to commit and see a similar error to the one in the example below then look at the bottom and see what it says.
If it says:
Then here is how you might be able to fix it!
Make sure that you have GitBash downloaded and installed. If you don’t then you can just follow this link to go to another one of my articles for instructions on how to do so.
Installing Git (Version Control Software)
Git is a Version Control System that allows users to backup, collaborate, and maintain their projects. It is an…
For further information on using GitBash check out this other article of mine.
Setting Up Git For Unity
Once you’ve downloaded and installed Git onto your computer.
Now, right-click on your unity projects file in your file explorer and select “GitBash Here”.
and now inside pf the git bash window simply type:
git config — global core.longpaths true
Then hit enter and bam! You're done!! it should be working fine now!!!