LabVIEW tools for newer versions won't work with older LabVIEW versions. Similarly if you try and open a new LabVIEW vi using an older version of LabVIEW you will get an error message as shown on the attachment.
PutnamCertified LabVIEW Developer
Senior Test Engineer North Shore Technology, Inc.
Currently using LV 2012-LabVIEW 2018, RT8.5

LabVIEW Champion