Minecraft Forums

So this is a bit strange, two weird things started happening to my game at the same time, and I have a strong feeling they're connected somehow.

First off, I can't join any servers. My game seems to recognize that the servers are open, as on the multiplayer screen it shows good signal strength and the background art for the servers, but when I click on them it instantly says "Can't join server: java.lang.nullpointerexception". I've searched all over the internet for a fix and can't find anything, because most of the results say "nullpointerexception group". Mine doesn't have the group part and none of the fixes for the group exception work.

Also, I'll add this: ass someone who actually knows how to code java, I know that a nullpointerexception is caused by attempting to use a variable that has been defined as null. I'm just trying to figure out what this internal variable is.

Secondly, my skin no longer works. The skin that I uploaded worked fine up until about a week ago- now I'm stuck as an Alex (which is weird because my skin uses the Steve format), and whenever I upload my skin via the new launcher, it renders the skin just fine when giving me the preview, but then it says "failed to upload skin". I tried via minecraft.net and it doesn't say "failed" but it doesn't work either.

The reason I say these two issues are connected is both because they happened at the same time and because they require retrieving info online in-game. Both the server connectivity and the skins take info from the Mojang server into your game, and because of these two issues, it's almost as if I'm constantly playing in offline mode. I feel like there's one thing I can do to fix both of these problems. Anyone have any ideas?

Click your name in the launcher then log out, then log back in

Quote from urielsalis»

Click your name in the launcher then log out, then log back in

/me tips hat

Its caused by a invalid session id and you generate a new one when doing that