page.title=Installing and Updating ADT
sdk.preview=0

@jd:body

<div id="qv-wrapper">
<div id="qv">

  <h2>In this document</h2>
  <ol>
    <li><a href="#preparing">Prepare for Installation</a></li>
    <li><a href="#installing">Installing the ADT Plugin</a>
      <ol>
        <li><a href="#troubleshooting">Troubleshooting</a></li>
      </ol>
    </li>
    <li><a href="#updating">Updating the ADT Plugin</a></li>
    <li><a href="#uninstalling">Uninstalling the ADT Plugin</a></li>
  </ol>

</div>
</div>

<p>Android offers a custom plugin for the Eclipse IDE, called Android
Development Tools (ADT), that is designed to give you a powerful,
integrated environment in which to build Android applications. </p>

<p>ADT extends the capabilities of Eclipse to let you quickly set up new Android
projects, create an application UI, add components based on the Android
Framework API, debug your applications using the Android SDK tools, and even
export signed (or unsigned) APKs in order to distribute your application.</p>

<p>In general, using Eclipse with ADT is a highly recommended approach to
Android development and is the fastest way to get started. If you use Eclipse,
the ADT plugin gives you an incredible boost in developing Android
applications.</p>

<p>To install and update the ADT Plugin, you can take advantage of the Eclipse
remote update feature. By setting up a remote update site, you can easily
download, install, and check for ADT updates. Alternatively, you can download
the latest ADT to your development computer as a local site archive. The
sections below provide instructions for both methods.</p>


<h2 id="preparing">Prepare for Installation</h2>

<p>Before you begin, take a moment to confirm that your development machine
meets the <a href="requirements.html">System Requirements</a>.</p>

<p>If you will be developing in Eclipse with the Android Development
Tools (ADT) Plugin &mdash; the recommended path if you are new to
Android &mdash; make sure that you have a suitable version of Eclipse
installed on your computer (3.4 or newer is recommended). If you need 
to install Eclipse, you can download it from this location: </p>

<p style="margin-left:2em;"><a href=
"http://www.eclipse.org/downloads/">http://www.eclipse.org/downloads/</a>
</p>

<p>A Java or RCP version of Eclipse is recommended. </p>

<h2 id="installing">Installing the ADT Plugin</h2>

<p>Once you have the Eclipse IDE installed, as described in <a
href="#preparing">Preparing for Installation</a>, above, follow these steps to
download the ADT plugin and install it in your respective Eclipse environment.
</p>

<table style="font-size:100%">
<tr><th>Eclipse 3.4 (Ganymede)</th><th>Eclipse 3.5 (Galileo)</th></tr>
<tr>
<td width="45%">
<!-- 3.4 steps -->
<ol>
    <li>Start Eclipse, then select <strong>Help</strong> &gt; <strong>Software Updates...</strong>. 
        In the dialog that appears, click the <strong>Available Software</strong> tab. </li>
    <li>Click <strong>Add Site...</strong> </li>
    <li>In the Add Site dialog that appears, enter this URL in the "Location" field:
      <pre style="margin-left:0">https://dl-ssl.google.com/android/eclipse/</pre>
        <p>Note: If you have trouble acquiring the plugin, try using "http" in the Location URL,
        instead of "https" (https is preferred for security reasons).</p>   
      <p>Click <strong>OK</strong>.</p></li>
    <li>Back in the Available Software view, you should see the plugin listed by the URL,
    with "Developer Tools" nested within it. Select the checkbox next to 
      Developer Tools and click <strong>Install...</strong></li>
    <li>On the subsequent Install window, "Android DDMS" and "Android Development Tools"
    should both be checked. Click <strong>Next</strong>. </li>
    <li>Read and accept the license agreement, then click <strong>Finish</strong>.</li>
    <li>Restart Eclipse. </li>
</ol>

</td>
<td>
<!-- 3.5 steps -->
<ol>
    <li>Start Eclipse, then select <strong>Help</strong> &gt; <strong>Install
        New Software</strong>. </li>
    <li>In the Available Software dialog, click <strong>Add...</strong>.</li>
    <li>In the Add Site dialog that appears, enter a name for the remote site
        (for example, "Android Plugin") in the "Name" field. 
        <p>In the "Location" field, enter this URL:</p>
        <pre>https://dl-ssl.google.com/android/eclipse/</pre>
        <p>Note: If you have trouble acquiring the plugin, you can try
           using "http" in the URL, instead of "https" (https is preferred for 
           security reasons).</p>
        <p>Click <strong>OK</strong>.</p>
    </li>
    <li>Back in the Available Software view, you should now see "Developer
        Tools" added to the list. Select the checkbox next to Developer Tools, 
        which will automatically select the nested tools Android DDMS and Android 
        Development Tools. 
        Click <strong>Next</strong>. </li>
    <li>In the resulting Install Details dialog, the Android DDMS and Android 
        Development Tools features are listed. Click <strong>Next</strong> to 
        read and accept the license agreement and install any dependencies, 
        then click <strong>Finish</strong>. </li>
    <li>Restart Eclipse. </li>
	
</ol>
</td>
</tr>
</table>

<p>Now modify your Eclipse preferences to point to the Android SDK directory:</p>
<ol>
    <li>Select <strong>Window</strong> &gt; <strong>Preferences...</strong> to open the Preferences
        panel (Mac OS X: <strong>Eclipse</strong> &gt; <strong>Preferences</strong>).</li>
    <li>Select <strong>Android</strong> from the left panel. </li>
    <li>For the <em>SDK Location</em> in the main panel, click <strong>Browse...</strong> and 
        locate your downloaded SDK directory. </li>
    <li>Click <strong>Apply</strong>, then <strong>OK</strong>.</li>
</ol>

<p>Done! If you haven't encountered any problems, then you're ready to
begin developing Android applications. </p>


<h3 id="troubleshooting">Troubleshooting ADT Installation</h3>

<p> If you are having trouble downloading the ADT plugin after following the
steps above, here are some suggestions: </p>

<ul>
  <li>If Eclipse can not find the remote update site containing the ADT plugin,
try changing the remote site URL to use http, rather than https. That is, set
the Location for the remote site to:
<pre>http://dl-ssl.google.com/android/eclipse/</pre></li> 
<li>If you are behind a firewall (such as a corporate firewall), make sure that
you have properly configured your proxy settings in Eclipse. In Eclipse 3.3/3.4,
you can configure proxy information from the main Eclipse menu in
<strong>Window</strong> (on Mac OS X, <strong>Eclipse</strong>) &gt;
<strong>Preferences</strong> &gt; <strong>General</strong> &gt; <strong>Network
Connections</strong>.</li>
</ul>

<p> If you are still unable to use Eclipse to download the ADT plugin as a
remote update site, you can download the ADT zip file to your local machine and
manually install it:</p>

<ol>
  <li>Download the current ADT Plugin zip file from the table below (do not unpack it).

  <table class="download">
    <tr>
      <th>Name</th>
      <th>Package</th>
      <th>Size</th>
      <th>MD5 Checksum</th>
  </tr>
  <tr>
    <td>ADT {@adtZipVersion}</td>
    <td>
      <a href="http://dl.google.com/android/{@adtZipDownload}">{@adtZipDownload}</a>
    </td>
    <td>{@adtZipBytes} bytes</td>
    <td>{@adtZipChecksum}</td>
  </tr>
</table>
</li>

</li>
  <li>Follow steps 1 and 2 in the <a href="#InstallingADT">default install 
      instructions</a> (above).</li>
  <li>In the Add Site dialog, click <strong>Archive</strong>.</li>
  <li>Browse and select the downloaded zip file.</li>
  <li>In Eclipse 3.5 only, enter a name for the local update site (e.g.,
      "Android Plugin") in the "Name" field.</li>
  <li>Click <strong>OK</strong>.
  <li>Follow the remaining procedures as listed for 
      <a href="#InstallingADT">default installation</a> above,
      starting from step 4.</li>
</ol>

<p>To update your plugin once you've installed using the zip file, you will have
to follow these steps again instead of the default update instructions.</p>

<h4>Other install errors</h4>

<p>Note that there are features of ADT that require some optional 
Eclipse components (for example, WST). If you encounter an error when 
installing ADT, your Eclipse installion might not include these components. 
For information about how to quickly add the necessary components to your 
Eclipse installation, see the troubleshooting topic 
<a href="{@docRoot}resources/faq/troubleshooting.html#installeclipsecomponents">ADT 
Installation Error: "requires plug-in org.eclipse.wst.sse.ui"</a>.</p>

<h4>For Linux users</h4>
<p>If you encounter this error when installing the ADT Plugin for Eclipse: 
<pre>
An error occurred during provisioning.
Cannot connect to keystore.
JKS</pre>
<p>
...then your development machine lacks a suitable Java VM. Installing Sun
Java 6 will resolve this issue and you can then reinstall the ADT
Plugin.</p>


<h2 id="updating">Updating Your Eclipse ADT Plugin</h2>

<p>From time to time, a new version of the ADT Plugin becomes available. Follow 
the steps below to check whether an update is available and, if so, to install it. 
For 
information about new features in ADT, see the <a
href="{@docRoot}sdk/adt-notes.html">ADT Plugin Notes</a> document. </p>

<table style="font-size:100%">
<tr><th>Eclipse 3.4 (Ganymede)</th><th>Eclipse 3.5 (Galileo)</th></tr>
<tr>
<td width="50%">
<!-- 3.4 steps -->
<ol>
    <li>Select <strong>Help</strong> &gt; <strong>Software Updates</strong>.</li>
    <li>Select the <strong>Available Software</strong> tab.</li>
    <li>Select the checkboxes next to Android DDMS and Android Developer Tools, 
      then click  <strong>Update</strong>.</li>
    <li>In the resulting Available Updates dialog, ensure that both Android DDMS 
      and Android Development Tools are selected, then click 
      <strong>Next</strong>.</li>
    <li>Read and accept the license agreement and then click <strong>Finish</strong>.
      This will download and install the latest version of Android DDMS and 
      Android Development Tools.</li>
    <li>Restart Eclipse.</li>
</ol>
</td>
<td>
<!-- 3.5 steps -->
<ol>
    <li>Select <strong>Help</strong> &gt; <strong>Check for Updates</strong>. </li>
    <li>In the resulting Available Updates dialog, locate the Android DDMS and 
        Android Development Tools features in the list and ensure that the checkboxes
        next to them are selected. Click <strong>Next</strong>. 
        <p>If the Available Updates dialog does not list Android DDMS and Android 
           Development tools, make sure that you have set up a remote update site 
           for them, as described in 
           <a href="#installing">Installing the ADT Plugin</a>. 
        </p></li>
    <li>In the Update Details dialog, click <strong>Next</strong>.</li>
    <li>Read and accept the license agreement and then click <strong>Finish</strong>.
      This will download and install the latest version of Android DDMS and 
      Android Development Tools.</li>
    <li>Restart Eclipse.</li>
</ol>
</td>
</tr>
</table>


<p>If you encounter problems during the update of ADT, you 
can try removing the existing ADT plugin and then performing a fresh
installation. To remove the plugin, follow the instructions in <a
href="#uninstalling">Uninstalling the ADT Plugin</a>, below. To reinstall 
the plugin, follow the instructions in <a
href="#installing">Installing the ADT Plugin</a>, above.</p>


<h2 id="uninstalling">Uninstalling the ADT plugin</h2>

<p><p>If you encounter problems when installing or updating ADT, you 
can try removing the existing ADT plugin and then performing a fresh
installation. To remove ADT, follow these steps: </p>

<table style="font-size:100%">
<tr><th>Eclipse 3.4 (Ganymede)</th><th>Eclipse 3.5 (Galileo)</th></tr>
<tr>
<td width="50%">
<!-- 3.4 steps -->
<ol>
    <li>Select <strong>Help</strong> &gt; <strong>Software Updates</strong> &gt; 
      <strong>Manage Configuration</strong>. </li>
    <li>Expand the list in the left panel to reveal the installed tools.</li>
    <li>Right-click "Android Editors" and click <strong>Uninstall</strong>. Click <strong>OK</strong> 
    to confirm.</li>
    <li>Restart Eclipse. 
      <p>(Do not uninstall "Android Development Tools".)</p></li>
</ol>
</td>
<td>
<!-- 3.5 steps -->
<ol>
    <li>Select <strong>Help</strong> &gt; <strong>Install New Software</strong>.</li>
    <li>In the "Details" panel, click the "What is already installed?" link.</li>
    <li>In the <strong>Eclipse Installation Details</strong> dialog, select "Android DDMS" and "Android Development Tools" and then click <strong>Uninstall</strong>.</li>
    <li>In the next window, confirm that the ADT features are selected for uninstall and then click <strong>Finish</strong> to uninstall.</li>
    <li>Restart Eclipse.</li>
</ol>
</td>
</tr>
</table>

