Hi
I am running a Apple Mac and i have loaded in Lightroom and i have loaded in google niks and when i go to edit my picture in Nik's Pro 4 and the others it show's this error message and i have uninstalled it and reloaded both but is stull not opening any answers please
Which method are you using:
Right-click (two fingers on trackpad) in the center of a thumbnail and choose Edit in Color Efex Pro 4 (or whichever plug-in you want)
Cmd+E to render image in Photoshop and then use the Filter menu