Problems installing Grails support extension

[xjohan]

I'm trying to install the Grails support extension, but half-way into the installation I get the error below. The same way every time I try. What's wrong?

An error occurred while collecting items to be installed
session context was:(profile=com.springsource.sts.ide,

phase=org.eclipse.equinox.internal.p2.engine.phase s.Collect, operand=,

action=).
Multiple problems occurred while downloading.
Problems downloading artifact:

osgi.bundle,org.aspectj.ajde,1.7.0.20120703164200.
File has invalid content:C:\Users\Johan\AppData\Local\Temp

\signatureFile7869491630594230863.jar
Invalid content:doc/examples/injar.jar
The file "doc/examples/injar.jar" in the jar "C:\Users\Johan\AppData

\Local\Temp\signatureFile7869491630594230863.jar" has been tampered!
Invalid content:ajde.jar
The file "ajde.jar" in the jar "C:\Users\Johan\AppData\Local\Temp

\signatureFile7869491630594230863.jar" has been tampered!
Unable to read repository at

http://download.eclipse.org/tools/aj.../org.aspectj.a

jde_1.7.0.20120703164200.jar.
Read timed out
Unable to read repository at

http://dist.springsource.org/snapsho.../org.eclipse.j

dt.core_3.8.1.xx-20120703-1400-e42-RELEASE.jar.
Read timed out
Unable to read repository at

http://dist.springsource.org/snapsho...s/org.codehaus.

groovy_1.7.10.xx-20120703-1400-e42-RELEASE.jar.
Read timed out
Unable to read repository at

http://dist.springsource.org/snapsho...s/org.codehaus.

groovy_1.8.6.xx-20120703-1400-e42-RELEASE.jar.
Read timed out

[Chalama 123]

Nice Post... Than you for your sharing..


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