Grails installation fails
I'm trying to add Grails extension to STS.
However when I try to find extensions at Help->Dashboard->Extensions tab I get this error:
Some sites could not be found. See the error log for more detail.
Unable to read repository at http://www.springsource.com/milestone/e3.4/site.xml.
Server returned HTTP response code: 403 for URL: http://dist.springsource.com/milesto.../e3.4/site.xml
Unable to read repository at http://www.springsource.com/snapshot/e3.4/site.xml.
Server returned HTTP response code: 403 for URL: http://dist.springsource.com/snapsho.../e3.4/site.xml
Can I somehow downoad the extension and install it manually?
unable to updates groovy in STS
Cannot complete the install because one or more required items could not be found.
Software being installed: Groovy-Eclipse Feature 2.5.2.xx-20110729-1800-e37