It seems to be a bug not a question ))
I have **VIX API 1.8.1. When I try to update to VIX API 1.10 Beta
I get error "The newer api version is already installed".
When I manually removed 1.8.1 it goes fine.
Thanks for the heads up. I'm glad you found a workaround.
Question: Are you using the Linux or the Windows installer? We will definitely look into this.
Windows installer.
See this too using the Windows installer for VIX 1.10 Beta - VMware-vix-e.x.p-222403.exe
Uninstalling 1.8.1 first using Control Panel | Add or Remove Programs is the workaround