Problem encountered in updating trusted community contribution

Kindly look in to the following error message and advise solution.  Thanks




An error occurred while collecting items to be installed
session context was:(profile=KNIMEProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Unable to read repository at
Read timed out

"Read timed out" sounds like a network issue. Can you simply retry?