Have you checked that the nets really are connected in the schematic using the Design Manager: ![enter image description here][1] [1]: /editor/20160530/574b6a517da45.png

Yes, they all appear to be connected!

When you convert your schematic to PCB, are there any errors?

There were errors to update the resistor & capacity Pkg but I corrected them. No errors after that when when I updated the PCB.

Can you look at the schematic and PCB for me?

Hi, Can you share your project with my email ![enter image description here][1] [1]: /editor/20160530/574bbb3651e4e.png I guess you make some mistakes like https://easyeda.com/Doc/Tutorial/PCB.htm#Invalid-Packages

* If you capture a sreenshot will be better,I have met that before. * I guess your some private package are incorrect, maybe you need to check their pads if exist. ![enter image description here][1] [1]: /editor/20160531/574c867fa5ee4.png *ps: I am a new user not official, just for your reference*

Thanks . . . I solved the problem. Pin names on PCB and schematic were different.