麻烦帮我看下这两段话大概说的什么意思？我画网格出现的一个error 和warning？是哪块出的问题？不胜感激

warning:Quad map meshing failed because a surface appears to be narrow with many boundary edges which could not be properly paired up for meshing. Using hard size controls on the boundary edges to force the same number of divisions may help to successfully generate a mapped mesh.
error:Meshing operation failed due to poor solid model description. The following face is causing the problem: (Cant project to surface)