After upgrading the ADT plugin, Eclipse suddenly appears unable to build:the file Dx.jar is not loaded from the SDK folder error

Older versions of the SDK Manager can only install Android 3.2 API, you need to update the SDK Manager version to install Android 4.0, Android 4.1, the method is as follows:

http://blog.csdn.net/aminfo/article/details/7788614

First step: Open the SDK Manager

Step two: Choose Available packages

Step three: Click "Add add-on Site ..." and enter the URL http://developer.android.com/sdk/index.html

Fourth step: Tick the Android repository, then select "Install Selected"


Then wait for the installation:

After installation, restart the SDK manager with the following interface:

Then select the Android version you want to install.

After you install and reopen Eclipse, you may receive the following prompt:

No way, had to install the new version of ADT, the method is as follows:

Open Eclipse, Help, Eclipse Marketplace, and then search for the keyword "ADT", such as:

Once found, click the "Install" button on the back to select Install.

Wait for the prompt, and then follow the prompts next

After the installation is complete, restart Eclipse. When you restart eclipse it will start, so compare cards, do not deal with them, and do not click on one side and let it slowly initialize.

After the initialization is complete, the interface to discover Logcat a little change, adding a "Scroll Lock" function, this function is too necessary.

If the installation is unsuccessful, you can refer to the

Http://jingyan.baidu.com/article/da1091fbd232fe027949d653.html

After upgrading the ADT plugin, Eclipse suddenly appears unable to build:the file Dx.jar is not loaded from the SDK folder error