I am new to lightroom and have been trying to make a panorama
but a dialogue box keeps on telling me unable to merge cancel and review selection,
I have done this over and over again with the same result.
thank you for any advice
What is the source and type of your photos you are trying to stitch together?
What is your OS and are you on the latest version 6.5.1 / CC 2015.5.1 ?
Please refer the below discussion.
Let us know if that helps.