Your project is private so only you can see it therefore the following is an educated guess as to what is causing the DRC error. This part is not in the EasyEDA or LCSC Schematic Symbol or PCB footprint libraries. Therefore, what you appear to have done is use a similar, user contributed symbol and footprint but you have either not checked the footprint against the manufacturer's datasheet: [https://datasheet.lcsc.com/szlcsc/Jing-Extension-of-the-Electronic-Co-LCSC-micro-5PAll-posts-are-not-guided-Flat-welding-High-temperature_C77238.pdf](https://datasheet.lcsc.com/szlcsc/Jing-Extension-of-the-Electronic-Co-LCSC-micro-5PAll-posts-are-not-guided-Flat-welding-High-temperature_C77238.pdf) or have not adjusted the clearance assigned to the tracks around this part. Before proceeding, p[lease](https://easyeda.com/forum/topic/Having-a-DRC-error-with-Micro-USB-connector-aecf8fea5718412b9fccb58f951131b4) read: [https://easyeda.com/forum/topic/Having-a-DRC-error-with-Micro-USB-connector-aecf8fea5718412b9fccb58f951131b4](https://easyeda.com/forum/topic/Having-a-DRC-error-with-Micro-USB-connector-aecf8fea5718412b9fccb58f951131b4)

I'm using LCSC part C77238, so that's LCSC library.

@Kamool, Sorry: I'd missed it. Anyway, it's wrong. I have reported it as being in error and have pointed LCSC to my own, correct to the datasheet footprint: **MICRO-USB-17-C77238** 

Thanks :) Your footprint seems to have solved a problem.