Eclipse: missing requirement E4 RCP patch when ins

问题:

I tried to install properties editor plugin from http://propedit.sourceforge.jp/eclipse/updates in Help -> Install new software. but won't installed. I got the following error:

I think my eclipse dosen't have E4 RCP patch. where can i get it? how can i install e4 RCP patch?

thank you in advance.

EDIT : I'm working on STS 3.6.3. the error message is

Cannot complete the install because one or more required items could not be found.
Software currently installed: Spring Tool Suite 3.6.3.201411281415-RELEASE-e44 (org.springsource.sts.ide 3.6.3.201411281415-RELEASE-e44)
Missing requirement: E4 RCP Patch (bugzillas 445122) 1.0.0 (org.eclipse.e4.rcp.R441patch.feature.group 1.0.0) requires 'org.eclipse.e4.rcp.feature.group [1.3.100.v20140909-1633]' but it could not be found
Cannot satisfy dependency:
From: Spring Tool Suite 3.6.3.201411281415-RELEASE-e44 (org.springsource.sts.ide 3.6.3.201411281415-RELEASE-e44)
To: org.springsource.sts.package.feature.group [3.6.3.201411281415-RELEASE-e44]
Cannot satisfy dependency:
From: Spring Tool Suite Package 3.6.3.201411281415-RELEASE-e44 (org.springsource.sts.package.feature.group 3.6.3.201411281415-RELEASE-e44)
To: org.eclipse.e4.rcp.R441patch.feature.group 0.0.0
OK

回答1:

Please deselect "Contact all update sites during..." and try again to install the add-ons. That should help.

This problem should be solved with STS 3.6.4 being released soon on top of Eclipse Luna SR2.

回答2:

The patch is available from the http://download.eclipse.org/eclipse/updates/4.4/ update site. Use 'Install New Software' to install it from there.

回答3:

I encountered this error while trying to install Spring Roo. I tried installing the patch from http://download.eclipse.org/eclipse/updates/4.4/ but that didn't work either. The solution that worked for me,

1. Download Eclipse Luna SR 2.
2. Install STS from the Eclipse market place.

I didn't hit the bug again.