Yes, we know. Already several posts with this glitch that was introduced with 6.10.
Until Adobe correct the error message- simply click [Open Anyway]. Edit-in Photoshop will continue as normal.
If one extra mouse click annoys you- Check [Don't Show Again] then [Open Anyway].
Ok ... that might work for Photoshop, but not for Lightroom. There is no "import anyway" button.
Other ideas for Lightroom?
What do you mean by "Import anyway"?
The 'Lightroom to Photoshop" nag dialog is answered above.
Are you talking about another different problem?
If it is that you cannot Import photos from your camera because -Lightroom does not support your camera- then, yes, entirely different problem. You will need to do either 1) buy a Lightroom update, or 2) convert photos to DNG then import to Lightroom. And ask- with details- in another post.