RStudio 1.4.1717 is failing on OS X 10.13.6 verification

OS X 10.13.6 is reporting corruption of RStudio 1.4.1717 on start-up when trying to verify it after copying to Applications. OS X reports the file is corrupt and should be deleted.

Solution: Using homebrew to install v1.4.1717 seemed to work fine as an alternative to downloading it directly.

Another possible solution here: R Studio is damage and can't be opened after dragging to Application folder