package manager not working

In any project,when I try to add a package with package manager,when I use search like ****

I'll get a error like this

How can I fix this?I try update my Xcode version,and it doesn't work.Now my Xcode version is 14.3.1, macos 13.4

Thanks for helping.

Hello , can you please share which package are you trying to add?

package manager not working
 
 
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