I tried to install Lightroom CC 2015 add-on, but installation was failed
The error message is: "Failed to verify license online".
(The Actual message is in Japanese, so it may different from the original English message.)
I tried to install paid (Add-on FUJIFILM Tether Shooting Plug-in (Mac)) and free (Add-on JPEG Optimizer) add-ons, but both failed.
I tried to the following procedure, but failed.
Re: This extension cannot be installed because licensing verification failed
How does add-ons install?