Hi Daniel, Welcome to EasyEDA. Can you make a copy of your project public? Here's how: https://easyeda.com/Doc/Tutorial/share.htm#Sharing

@andyfierman I have made it public now.

The problem is that the `DRV8825 stepper motor driver carrier` package appears to have some spurious tracks drawn under most of the pads on the bottom solder layer (which is actually the bottom solder mask, not the bottom copper layer) and these are what the DRC is seeing as errors. The simple solution is to open the package for edting (SHIFT+F to find it then click on `Edit`), turn off the visibility of the `All layers` layer and then hold down the CTRL key and select each horizontal and each vertical line segment. This selects all the segments. Then press the delete key. This deletes all the segments. (Simply doing a right or left hand drag also selects and consequently deletes all the pads even though they are invisible, which is why the segments have to be selected as described above.) Then save the package with a new name. Alternatively, clone the `DRV8825 stepper motor driver carrier` package, give it a new name and then edit it as described above. Then in the schematic, change the name of the package assigned to the schematic symbol to that of the renamed, edited package. However, there appears to be a bug introduced with the update to V3.10.8 on October 29 which is causing such updated packages to generate an error when the schematic is converted to PCB or an existing PCB to be updated from the schematic. A workaround is to recreate the desired package from scratch using the PCB Libs package editor. * We are working to fix this as soon as possible and apologise for any inconvenience this is causing.

A better workaround just posted by Adrianrolla: 1. Edit pcb lib (package) with the issue 1. click Document/Easyeda source 1. Download your source 1. click Document/open Easyeda file 1. open your previously downloaded package 1. save it with other name or previously delete original and save with same name 1. Edit schematic or schematic lib with issue, update package if saved with other name 1. "convert project to pcb" voila!!!!

The packages is not very well, we fixed the DRV8825 package, no you can import the change again. ![enter image description here][1] [1]: /editor/20161031/5816d3f110948.png

Thanks a lot it works well now after I imported the changes. One question though, why don't all the components remain at their position after importing changes? For these components the text on the silk layer loses the offset too and I have to move it back next to the component.

This seems to be another bug. :( It has already been reported and is being worked on now so a fix should be available very soon.

In the V3.11.1 , we should fix it. Now you can try and report.

Tried it and it works, good job.