title: How do I install System Images for Android 4.4W (API 20)
body: <p>I am new to Android development. I am following the setup instructions on <a href="http://developer.android.com/" rel="nofollow noreferrer">http://developer.android.com/</a> so I downloaded Eclipse ADT. While trying to create and Android Virtual Device (AVD) the OK button is disabled because I do not have System Images installed for the target (Android 4.4W - API Level 20). So I launched Android SDK Manager to download and install them, but I do not see any option to install them and also do not see "sources for android sdk" under "Android 4.4W (API20)". Here is snapshot of my the Android SDK Manager:</p>
  
  <p>How to do I install System Images for Android 4.4W (API 20)</p>
  
  <p><img src="https://i.stack.imgur.com/S0Jik.png" alt="enter image description here"></p>
  
  <p><strong>EDIT:</strong>
  As suggested by @ashoke I installed Stand-alone SDK Tools but that too shows only this:
  <img src="https://i.stack.imgur.com/VgkNL.png" alt="enter image description here"></p>
  
  <p>On launching the SDK Manager I am getting this exception:</p>
  
  <pre><code>[2014-09-13 00:44:05 - SDK Manager] [SDK Manager] Exception in thread "Loading Sources" java.lang.UnsatisfiedLinkError: sun.net.PortConfig.getLower0()I
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.net.PortConfig.getLower0(Native Method)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.net.PortConfig.&lt;clinit&gt;(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.net.SocketPermission$1.run(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.net.SocketPermission$1.run(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.security.AccessController.doPrivileged(Native Method)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.net.SocketPermission.initEphemeralPorts(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.net.SocketPermission.&lt;clinit&gt;(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.util.SecurityConstants.&lt;clinit&gt;(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.lang.Class.getProtectionDomain(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.JceSecurity$2.run(JceSecurity.java:226)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.security.AccessController.doPrivileged(Native Method)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.JceSecurity.getCodeBase(JceSecurity.java:224)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.JceSecurityManager.getCryptoPermission(JceSecurityManager.java:107)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.Cipher.getConfiguredPermission(Cipher.java:2503)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.Cipher.initCryptoPermission(Cipher.java:685)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.Cipher.chooseProvider(Cipher.java:848)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at javax.crypto.Cipher.init(Cipher.java:1348)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherBox.&lt;init&gt;(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherBox.newCipherBox(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherSuite$BulkCipher.newCipher(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherSuite$BulkCipher.isAvailable(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherSuite$BulkCipher.isAvailable(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.CipherSuite.isAvailable(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.SSLContextImpl.getApplicableCipherSuiteList(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.SSLContextImpl.getDefaultCipherSuiteList(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.SSLSocketImpl.init(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.SSLSocketImpl.&lt;init&gt;(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at sun.security.ssl.SSLSocketFactoryImpl.createSocket(Unknown Source)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.conn.ssl.SSLSocketFactory.createSocket(SSLSocketFactory.java:342)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:136)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:561)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.UrlOpener.openWithHttpClient(UrlOpener.java:404)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.UrlOpener.openUrl(UrlOpener.java:183)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.DownloadCache.openUrl(DownloadCache.java:293)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.DownloadCache.downloadAndCache(DownloadCache.java:676)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.DownloadCache.openCachedUrl(DownloadCache.java:598)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.AddonsListFetcher.fetchXmlUrl(AddonsListFetcher.java:267)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.AddonsListFetcher.fetch(AddonsListFetcher.java:132)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.updater.PackageLoader.loadRemoteAddonsListInTask(PackageLoader.java:460)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.updater.PackageLoader.access$200(PackageLoader.java:47)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.updater.PackageLoader$3.run(PackageLoader.java:430)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdkuilib.internal.tasks.ProgressView$2.run(ProgressView.java:140)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdkuilib.internal.tasks.ProgressView.startTask(ProgressView.java:162)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdkuilib.internal.tasks.ProgressViewFactory.start(ProgressViewFactory.java:46)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.updater.PackageLoader.loadRemoteAddonsList(PackageLoader.java:427)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdklib.internal.repository.updater.PackageLoader$1.run(PackageLoader.java:233)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at com.android.sdkuilib.internal.tasks.ProgressView$2.run(ProgressView.java:130)
  [2014-09-13 00:44:05 - SDK Manager] [SDK Manager]   at java.lang.Thread.run(Unknown Source)
  </code></pre>