Ray, "Karma" is not the name of a forum member (as far as I know). You click that link under a member's name to thank them for something (giving them "Karma").
I think you are referring to the code that marine_hm posted. That is a useful sketch that simply tests that any i2c devices (like bme280) are correctly wired and that the Arduino can communicate with them. Check the serial monitor. If the bme280 is working and wired correctly you should see a single device reported, along with its address on the i2c bus. But I suspect you don't have your bme280 yet, so you probably see "no devices found".