Problems following android hello-world tutorial
<p>I am following this tutorial:
<a href="http://developer.android.com/resources/tutorials/hello-world.html" rel="nofollow">http://developer.android.com/resources/tutorials/hello-world.html</a></p>

<p>and I am at the "install a platform" part.</p>

<p>After I go to Android SDK and AVD Manager, choose Available Packages in the left panel, and on the right panel, I expand the Android Repository list to display the components available for installation.</p>

<p>Once I check the checkbox for "Android Repository" It shows me 2 options:
1) Android SDK tools, revision 15
2) Android SDK platform-tools revision 9</p>

<p>Naturally I have no idea which I need, so I check both :)
(Which should I choose and what are these options?)</p>

<p>Then I choose "install" and it stops in the middle with a warning "folder failed to be moved blah blah" - but I already ran it as administrator.</p>

<p>Then it ends up outputting this stuff:</p>

<pre><code>Downloading Android SDK Platform-tools, revision 9
Installing Android SDK Platform-tools, revision 9
'adb kill-server' succeeded.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Failed to rename directory C:\Progra~2\Android\android-sdk\platform-tools to C:\Progra~2\Android\android-sdk\temp\PlatformToolPackage.old01.
Skipping 'Android SDK Tools, revision 15'; it depends on 'Android SDK Platform-tools, revision 9' which was not installed.
</code></pre>

<p>What do you think might be the problem?  Thanks!</p>
