sdk manager update
<p>I have installed eclipse indiego , added ADT plugins from google repository after that I closed the eclipse and restart again. then no wizard appear to ask for installing a sdk , so I manually install the latest from google developer and give the path in windows-->preference ->android</p>

<p>I saw there was no platform and tool-platform in the installed sdk , so I tried to update it from SDK manager,but there is no more choice to update...no additional platform or ...</p>

<p>it has some choices: news/update installed 
but there is nothing new no choose with marking update!! and as you know I cant run a project without platform tools and platforms...</p>

<p>so , I get android4 and place it in platforms and also an old platform-tools but the runtime error : crunch command is not known appear as I wanna run a project.</p>

<p>so I went back to the first question,how can I update the sdk </p>
