in my pdi i am click the start building button then i its open developer in new tab but it took a lot of time like half hour i am using the zurich version i am also tried to upgrade the version but and show this message in my history "Error upgrading to Australia Patch 2" and i am also try to clear cache https://devxxxx.service-now.com/cache.do but it wouldn't happen i face the issue from serveral weeks but not solve the issue any solution its open the developer tab open quickly
