I am facing this error while trying to install beta-managed package to my Dev Org (Platform version - Summer'17). I googled before posting the question, and found this link: Question link. However, as per this, already all patches are pushed to all Salesforce Orgs. So this should not be the cause.... But still I am facing this issue.
Error is : "We couldn't retrieve the design time component information for component X". Can anyone help on this?