"android: can't find sdkmanager.jar" : <p>I downloaded the Android SDK tools from <a href="https://developer.android.com/studio/index.html" rel="noreferrer">https://developer.android.com/studio/index.html</a> which gave me a zip file called <code>tools_r25.2.3-linux.zip</code>. Unziped, it produced a folder called <code>tools</code>, containing the sdkmanager, <code>android</code>. When I tried to run it, it failed with the error message above.</p>

<p>I set <code>ANDROID_HOME</code> to the <code>tools</code> directory, but it still failed.</p>
