Hello,
I'm trying to download the WAB Dev Edition 2.8 from ArcGIS Reposity with no success.
From the official WebSite we have the possibility to download the 2.10 version only.
Do you have any idea about this problem?
many thanks
Try this link:
https://developers.arcgis.com/downloads/apis-and-sdks?product=web-appbuilder&version=2.8