This message is generated if the first argument in ContourGraphics, DensityGraphics, or SurfaceGraphics is not an array or does not have two or more elements in each dimension.
This message is generated when the ContourGraphics, DensityGraphics, or SurfaceGraphics expression is displayed or converted to another form.
Off[message] switches off the message; On[message] switches it on. For example: Off[ContourGraphics::gmat].