Hi, I am having a similar issue and hoping someone can help! I upload my targets to Vuforia and download the database. But when I go to Aris Editor -> AR Targets -> Upload AR target, I run into a problem. First, the target database does not download as a .zip file from Vuforia in the first place. Instead, for each image in the database, it downloads two separate files: a .xml and a .dat, in a folder with the same name as the target database. Trying to upload either of these files singly as an AR target gets the following error message from ARIS:
Cannot save ar_target: Invalid filetype 'dat'
Cannot save ar_target: Invalid filetype 'xml'
So, I zipped the files myself (on Mac, right clicking on the target database folder downloaded from Vuforia -> Compress)
When I try to upload the new .zip file that I created, I get a different error message:
Cannot save ar_target: Invalid DB zip
I'm not sure if this is an issue with Vuforia's download procedure or Aris's upload procedure. Any assistance is much appreciated.