An error occurred while collecting items to be installed
session context was:(profile=epp.package.java, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.draw2d_3.10.100.201606061308.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.draw2d_3.10.100.201606061308.jar
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.emf.common_2.12.0.v20160420-0247.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.emf.ecore_2.12.0.v20160420-0247.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.emf.ecore.change_2.11.0.v20160420-0247.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.emf.ecore.xmi_2.12.0.v20160420-0247.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.emf.edit_2.12.0.v20160526-0356.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.gef_3.11.0.201606061308.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.wst.server.core_1.8.100.v201605201456.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.wst.server.discovery_1.3.0.v201606030549.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.datatools.modelbase.dbdefinition_1.1.0.201603142002.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.datatools.modelbase.sql_1.1.0.201603142002.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/features/org.eclipse.emf.common_2.12.0.v20160420-0247.jar
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/features/org.eclipse.emf.ecore_2.12.0.v20160420-0247.jar
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jpt.common.core_1.5.0.v201603181811.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jpt.jpa.core_3.5.0.v201603181811.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jpt.jpa.db_2.2.200.v201603180253.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jst.common.project.facet.core_1.4.500.v201508121553.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jst.j2ee_1.1.900.v201607282038.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jst.j2ee.web_1.1.851.v201608191717.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.jst.server.core_1.2.500.v201603031514.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/targetplatforms/jbosstoolstarget/4.61.0.Final/REPO/plugins/org.eclipse.pde.core_3.11.0.v20160510-1223.jar
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Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.hibernate.eclipse_5.1.2.v20161111-1418.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.hibernate.eclipse_5.1.2.v20161111-1418.jar
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Multiple problems occurred while downloading.
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.hibernate.eclipse.console_5.1.2.v20161116-1036.jar
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Multiple problems occurred while downloading.
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.hibernate.eclipse.jdt.ui_5.1.2.v20160915-1030.jar
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Multiple problems occurred while downloading.
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.hibernate.eclipse.mapper_5.1.2.v20161114-0807.jar
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Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.antlr.v_2_7_7_5.1.2.v20160915-1030.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.antlr.v_2_7_7_5.1.2.v20160915-1030.jar
download.jboss.org
Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.bsh.v_2_0_b4_5.1.2.v20160915-1030.jar.pack.gz
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Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.bsh.v_2_0_b4_5.1.2.v20160915-1030.jar
download.jboss.org
Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.dom4j.v_1_6_1_5.1.2.v20160915-1030.jar.pack.gz
download.jboss.org
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.dom4j.v_1_6_1_5.1.2.v20160915-1030.jar
download.jboss.org
Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.jtidy.v_r8-20060801_5.1.2.v20160915-1030.jar.pack.gz
download.jboss.org
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.libs.jtidy.v_r8-20060801_5.1.2.v20160915-1030.jar
download.jboss.org
Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.runtime.spi_5.1.2.v20161121-1143.jar.pack.gz
download.jboss.org
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.runtime.spi_5.1.2.v20161121-1143.jar
download.jboss.org
Multiple problems occurred while downloading.
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.ui_5.1.2.v20161118-1943.jar.pack.gz
download.jboss.org
Unknown Host: http://download.jboss.org/jbosstools/static/neon/stable/updates/core/4.4.2.Final/plugins/org.jboss.tools.hibernate.ui_5.1.2.v20161118-1943.jar
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可以试下 这个方法。 http://blog.csdn.net/chentiefeng521/article/details/51835462
换在javaee下安装未报错