Missing SDK platform Android, API 18

Question

While I am trying to Install API 18 it shows only \"Google API 18\"(nothing more). Now if I try to install these google APIs from Android SDK Manager

Answer 1

Seemed kind of klukey, I had similar issues. I finally got passed the api 18 msg when I updated the sdk tools to 22 which then prompted another error that the tools were degraded on reload. I opened sdk mgr again and had a 22.3 and platform tools to rev19 and some other tool choices available. I did yet another update to them along with the API19 and API 18 and it seems like it is moving along now. I think maybe for API 18+ you must update the SDK tools to 22.3 at this point. Btw, I also got a file lock during part of the process and closing eclipse in the background and hitting retry fixed. dang.. next it is saying that the ADT must be version 22.0+..
I updated the ADT to 22.3 by using the eclipse/help/install new software (Trying update simply said it was up to date)... one unsigned content error.. Restarted ADT after update.. seems to be working from what I can tell so far.