A user encountered an AppV Client error 0600000011, with the Powershell cmdlet “Get-AppvClientpackages”.
(I used the “-all” property, because my admin user didn’t had the application published)
The AppV log shows all required information: Failed to load a manifest document from one particular package.
This package had two package-versions. If we browse the AppV cache and goto the package with Package GUID eadb7b20-d9d9-4e5f-b568-8312a090d9f8 we see two versions. But deleting the package with the well known pipe command wasn’t possible.
Removing with “Get-AppvClientPackage | Remove-AppvClientPackage” doesn’t work out because the Get-AppvClientPackage throws the error 0600000011. Using Remove-AppvClientPackage with the appropriate package and version GUIDs however does the job.
After deleting the faulty packages from cache, do a Sync-Publishing server and you’re back in business.