Which error ?
Images do not show on the forum.
Images aren't allowed for sharing here - see FAQs 1 & 2 at For Best Results - Read the Label
Or just use your words...
Might want to search for/read recent threads same topic: such asUnable to install Xcode 11.1
Is this about not enough free space? If so, there are recent threads that cover that topic, such as: https://forums.developer.apple.com/message/338540#338540
Did you already have luck installing Xcode 11.0?