Solution to errors in setting up the android Development Environment ADT plug-in eclipse classic under win7

After some Google search solutions, they are now recorded.
 
After downloading the eclipse classic 4.3 m2 version from the eclipse official website, enter the plug-in address required requirements and dependencies for a long time in help> install new software and location of eclipse, after searching, you will find that the installation selects "Contact ".
Check box before all update sites during install to find required software. solution (the same is true for installing other plug-ins): But the side effect of removal is that an error occurs during later installation.
 
1. Remove the check box before "Contact all update sites during install to find required software" (visit all update sites to find the required software during installation) and reinstall the software.
2. If the installation is performed locally and the network is disconnected, the problem can be solved.
3. Download the offline installation package. For more information, see http://developer.android.com/sdk/installing/installing-adt.htmlin troubleshootingarticle 1 download the ADT plugin ZIP file (do not unpack it ):

Next, install ADT, select and expand, and encounter an error (it is caused by removing calculating requirements and dependencies ):
 
Cannot complete the install because one or more required items cocould not be found.
Software being installed: Android development tools development 0.3.v201208082019-427395 (COM. Android. Ide. Eclipse. ADT. feature. Group Development 0.3.v201208082019-427395)
Missing requirement: Android development tools 255.0.3.v201208082019-427395 (COM. android. IDE. eclipse. ADT. feature. group errors 0.3.v201208082019-427395) requires 'org. eclipse. WST. SSE. core 0.0.0 'But it cocould not be found
 
The dependent org. Eclipse. WST. SSE. Core cannot be found.
The solutions found on the Internet are:
1. In eclipse, find the main update source of eclipse in help-> install new software, that is, find Juno-in the drop-down list of the work with record-
Http://download.eclipse.org/releases/juno.
2. Find the WST server adapters under Web, XML, and Java EE development in the update and install it.
3. reinstall the ADT plug-in.

 

However, after installation, org. Eclipse. WST. SSE. Core is still missing. You can simply select the entire web, XML, and Java EE development. Other dependencies are missing and the error persists. It seems that it is still very troublesome to manually add the missing package. At last, we finally made a compromise. During installation, we selected the check box "Contact all update sites during install to find required software, let eclipse automatically search for missing software packages and download and install them. Finally, the installation is successful.

The final conclusion is that when using the eclipse classic version to install ADT, you still need to select "Contact all update sites during install to find required software ", just wait for a while.

 

If the preceding missing package is available, you can get the second simpler method without errors:

Method 2: Download the eclipse for RCP and rap developers version on the official website. The offline installation of ADT is successful.