I configured releases same way for a couple of our servers but I have issue with one of them (others work perfectly):
[error]Failed to deploy web package to IIS website.
[error]Error: C:\vstsagent\A2_work_tasks\IISWebAppDeploymentOnMachineGroup_1b467810-6725-4b6d-accd-886174c09bba\0.0.20\MSDeploy3.6\msdeploy.exe failed with return code: 2148734720
Unfortunately I can't find anything helpful related to this error Code.
My release configuration:
IIS Web App Deploy (Preview)
Deployment group with one specific staging server (I'm using on-premise agent)
Website name: correct name of my website in IIS
Virtual Application: empty field
Package of Folder: zip chosen from build drop artifacts
Selected "XML variable substitution"
Selected "Remove Additional Files at Destination"
What I've already tried with no luck:
manually turn of application
delete all files in application folder
changing user account to use for the service
Again - same configuration for other servers works fine.
Servers configuration: Windows Server 2012R2 Standard x64