Eclipse Installation Shelled unsuccessful solution

I am Win7, a 64-bit operating system, and the Eclipse version is a 32-bit eclipse-java-luna-sr1-win32. When installing shelled, the installation is unsuccessful, and there are two phenomena:

1. When installed in Eclipse's Help > Install NEW Software in accordance with the online tutorials, it is stuck around 30%.

2. Error occurred during installation:

Cannot complete the install because one or more required items could not be found.
Software being installed:shelled 2.0.2 (net.sourceforge.shelled.feature.group
2.0.2) Missing requirement:shelled Core plug-in 2.0.0.201207181255
(Net.sourceforge.shelled.core 2.0.0.201207181255) requires ' bundle
Org.eclipse.dltk.core [4.0.0,5.0.0] ' but it could wasn't be found.

For the second error, I refer to the advice of Zhihong and others, first using the Help > Install New software > Add in Eclipse

Name:dynamic Languages Toolkit. location:http://download.eclipse.org/technology/dltk/updates-dev/4.0-nightly/.

Install version 4 of the Dynamic Languages Toolkit, then go to install shelled, and finally finish successfully.

You can see in Eclipse, New > Other:

Eclipse Installation Shelled unsuccessful solution