If you are unable to install SketchUp 2026 with this message:
you can download the offline installer here: https://sketchup.trimble.com/en/offline-download
Alternatively, untick the option for Scan Essentials when follow the prompts during installation.
For more details, please refer to this SketchUp Forum post: https://forums.sketchup.com/t/sketchup-2026-will-not-install/343055