Click to install.
The error message is:
Cannot complete the install because one or more required items cocould not be found.
Software being installed: Android development tools 16.0.1.v201112150204-238534 (COM. Android. Ide. Eclipse. ADT. feature. Group 16.0.1.v201112150204-238534)
Missing requirement: Android development tools 16.0.1.v201112150204-238534 (COM. android. IDE. eclipse. ADT. feature. group 16.0.1.v201112150204-238534) requires 'org. eclipse. WST. SSE. core 0.0.0 'But it cocould not be found
If so, don't worry. Well, I wasted an afternoon on this problem, so you don't need it.
Select "Help-> install new software", and then select the condition where the network is required. Otherwise, no problem occurs:
Press enter, as shown in figure
Select the last item and click. The installation will be performed later,
After installation, install the ADT. In this way, the problem can be solved.
Successfully installed