I download SketchUpPro-2019-0-685-20289-en.exe and run it.
It fails to setup on my computer as I systematically get the following error:
As a result, sketchup pro 2019 fails to setup.
PS: I first suspect it fails due to Microsoft Redistributable package 2017 V14 setup phase.
I finally found that the failure is due to the presence of Sketchup 2019 RC2. Unless of upgrading the setup, the above windows message is displayed.
After uninstalling Sketchup 2019 RC2, I was able to setup the release version.