The problem is that all you have done is change the default name of "Inner4" to "GroundPlane" but you have left it derfined as a Signal layer. That does not automagically turn it into a ground plane. Similarly your layer named "PowerPlane". To define a layer as a plane you must set the **Type** attribute to **Plane**:  You then have to assign the same net name of that plane to the net that you want it to be connected to using the **Plane Zone Properties**: [https://docs.easyeda.com/en/PCB/Layer-Manager/index.html](https://docs.easyeda.com/en/PCB/Layer-Manager/index.html)

@andyfierman  Thank you very much for your reply! I defined the type of "PowerPlane" and "GroundPlane" as "Signal" because I need custom-designed planes. For example, in the "PowerPlane" layer, I divided the whole plane into 2 unconnected sub-planes, one of them provides 5V voltage and the other provides 10.5~11V (as shown in Fig. 1). I don't know how I can achieve this if the type of layer is "Plane".                                                                                              Fig. 1 Also, I created 4 holes on the corners of this PCB so that I can fix the PCB with screws. I am not sure but I think different layers might be electrically connected through the metal screws, that why I created some cut-out regions on each layer (Fig. 2). Are they unnecessary?                                     Fig. 2 Thanks!

You can split a plane in a layer defined as a plane as described in: [https://docs.easyeda.com/en/PCB/Layer-Manager/index.html](https://docs.easyeda.com/en/PCB/Layer-Manager/index.html) If that is not sufficient for your needs, you can define the layer as a Signal layer and then simply use the Copper Area tool. Please see the Tutorial for more information.

@andyfierman Thanks for your reply! It solved my problem perfectly!

For more help on EasyEDA: [https://easyeda\.com/andyfierman/Welcome\_to\_EasyEDA\-31e1288f882e49e582699b8eb7fe9b1f](https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f)