Hello, I designed a model in Autodesk 123D Design last night and saved it as .x3d and last night in Blender I imported it in and it worked perfectly. Well today I go in and make another model and save it as .x3d and attempt to import it as .x3d(same steps as last night) and it gave me this error. I have seen posts about this issue but it was exporting not importing so I do not know if the steps are the same or not. I am not good with modeling in Blender so I just used Autodesk and it worked but this error appears and I do not know how to fix it. Help please? Thanks!