Purge command: You must provide either filename fiters, or a list of paths to remove

I search for a method to remove some files from all backups and found the “purge” command. I tried to use the command as explained in these posts:

I created a batchfile with the following content:

SET DUPLICATICLI="C:\Program Files\Duplicati 2\Duplicati.CommandLine.exe"

%DUPLICATICLI% purge "file://E:\BackupLaptop\" ^
  "C:\Users\jrast\Pictures\TestCatalog\Cache" ^
  --dbpath="C:\Users\jrast\AppData\Roaming\Duplicati\BDWOZVBHJF.sqlite" ^
  --dry-run

However, I only get this response:

You must provide either filename filters, or a list of paths to remove

What’s wrong with this command? I also tried the --include=... parameter, but the output is the same.

I’m using duplicati 2.0.3.5_canary_2018-04-13