"No system images installed for this target" even though Image is installed
Solution 1:
After SDK Update I had the same problems with API Level 19 and in my case restarting eclipse didn't solve it.
For some reason, in the sdk/system-images/android-19
directory, sub-folders with system images (armeabi-v7a and x86) were placed within "default"
directory.
I just moved them into android-19
directory (if eclipse is running at the same time, you will have to restart it).
Solution 2:
You just need to restart the tools. I have seen this bug before. The appropriate installed images will show up after the restart.
You can also try to refresh within the 'Packages' menu, but the easiest thing, is to restart the tools.
Solution 3:
Goto sdk\system-images and open the folder of the current API you are using (eg.android-19 folder in your case). Now you'll find a folder named 'default', open it and you'll see the folder named 'armeabi-v7a' or which ever system image you've installed. Now move the folder 'armeabi-v7a' to the directory sdk\system-images...i.e simply out of the 'default' folder.
That's it. I had the same problem and this method worked for me. :D