hey there, im working on making my guitar in 3d, and ive found a problem, when im trying to texture my subdiv neck the different modes (polygon / standard) has diffrent uvs and when i try to apply the material when its in polygon mode it looks something like this:


and when i try to do a planar mapping in standard mode it wont let me do it giving me the msg:
"Error: This command requires at least 1 argument(s) to be specified or selected; found 0. //"

my question is how do i solve this problem? ty