I know this is probably a really dumb question, but I can't figure it out. 
When you go to your branches, right click on one, and click publish, the first time it asks you for a URL and I put in the wrong one (one that doesn't even exist haha). So now whenever I try to publish a branch, it says it can't find it and I don't know how to change the URL because the option doesn't come up anymore.


Question: how to identify IC codes?
Answer: I don't know if this qualifies as an answer, but to be sure you will have to take a look at the manufacturer data-sheet.

There should be a section named similar "Marking information" or "Part labeling" or "Package marking".

Example: