NIK and Photoshop problem

I have a jpeg black and white image, scanned from a neg, that will not open in NIK when I am in Photoshop. "NIK Collection" is greyed out in the Filters menu. I tried saving it as tiff and trying that, but same result. I have never before been unable to open an image file in NIK. I have the problem with no other file. If the file is corrupted somehow, is there a way to fix it?

Have you tried opening a copy of the file and then changing one or more of these parameters? I have had problems in the past where bit depth was the issue.

I have a jpeg black and white image, scanned from a neg, that will not open in NIK when I am in Photoshop. "NIK Collection" is greyed out in the Filters menu. I tried saving it as tiff and trying that, but same result. I have never before been unable to open an image file in NIK. I have the problem with no other file. If the file is corrupted somehow, is there a way to fix it?

Ah, I discovered the solution:

IMAGE>MODE>RGB Color. Sorry for the errant post!

G

Nik really should have detected the data wasn't in an RGB Working Space and popped an error. But the good news is, you found the solution.