Se alguém puder ajudar ...
Eu recebo o mesmo erro toda vez que tento instalar o Pydev no Eclipse Indigo usando este procedimento link
O SO é LinuxMint Release 13 (maya) 64 bits / Kernel Linux 3.2.0-23-generic
ERRO:
"Instalando o software" encontrou um problema.
Ocorreu um erro ao coletar itens a serem instalados
Detalhes:
An error occurred while collecting items to be installed
session context was:(profile=PlatformProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,com.python.pydev,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8423629606714641838.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8423629606714641838.jar
Problems downloading artifact: osgi.bundle,com.python.pydev.analysis,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8391623327659480311.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8391623327659480311.jar
Problems downloading artifact: osgi.bundle,com.python.pydev.codecompletion,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile3746625321772103475.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile3746625321772103475.jar
Problems downloading artifact: osgi.bundle,com.python.pydev.debug,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile4902431167943030588.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile4902431167943030588.jar
Problems downloading artifact: osgi.bundle,com.python.pydev.fastparser,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8336801411655622421.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8336801411655622421.jar
Problems downloading artifact: osgi.bundle,com.python.pydev.refactoring,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile3401911711333613730.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile3401911711333613730.jar
Problems downloading artifact: osgi.bundle,org.python.pydev,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile5465887325944080639.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile5465887325944080639.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.ast,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile2530886465445907824.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile2530886465445907824.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.core,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8353668280674205348.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8353668280674205348.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.customizations,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8961879712878586747.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8961879712878586747.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.debug,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile5358033523041732985.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile5358033523041732985.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.django,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile701668588170627706.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile701668588170627706.jar
Problems downloading artifact: org.eclipse.update.feature,org.python.pydev.feature,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8407261573488726376.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8407261573488726376.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.help,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile7258747189504801082.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile7258747189504801082.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.jython,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile8306438291183972232.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile8306438291183972232.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.parser,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile6196297495782026099.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile6196297495782026099.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.refactoring,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile1002743366551160316.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile1002743366551160316.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.shared_core,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile281611419680518255.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile281611419680518255.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.shared_interactive_console,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile6543277695859229447.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile6543277695859229447.jar
Problems downloading artifact: osgi.bundle,org.python.pydev.shared_ui,3.2.0.201312292215.
Error reading signed content:/tmp/signatureFile6214006044667779893.jar
An error occurred while processing the signatures for the file: /tmp/signatureFile6214006044667779893.jar