Install failed for Photon 4.8

[philbelland]

An error occurred while collecting items to be installed session context was:(profile=SDKProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=). Problems downloading artifact: osgi.bundle,de.jcup.basheditor,2.9.0. Error reading signed content:C:\Users\philb\AppData\Local\Temp\signatureFile7287624370526782437.jar An error occurred while processing the signatures for the file: C:\Users\philb\AppData\Local\Temp\signatureFile7287624370526782437.jar Problems downloading artifact: org.eclipse.update.feature,de.jcup.basheditor,2.9.0. Error reading signed content:C:\Users\philb\AppData\Local\Temp\signatureFile4780896935601244460.jar An error occurred while processing the signatures for the file: C:\Users\philb\AppData\Local\Temp\signatureFile4780896935601244460.jar