Here is the official errata for the EP Core Rulebook. You can choose the full errata, with every niggling typo, or just grab the major changes, which only note the significant rules and setting corrections:

• Complete Errata Version 1.0 (PDF)
• Major Errata Version 1.0 (PDF)

All of the changes noted here are reflected in the second printing of the EP Core Rulebook, currently at the printer.