How to feed the points to Surface from Points

[loppp138]

Hi, I am new to grasshopper and rhino, I created 4 points as input points to the Surface From Points, but it showed an error that

The surface could not be fitted

could you tell me what I missed here? Thanks a lot!

[wim (Wim Dekeyser)]

Hi -

@loppp138

could you tell me what I missed here?

You only have 2 point in the U direction, not 4.
-wim