具体错误提示如下：
[2016-03-10 23:07:32] Executing bootstrap tasks
[2016-03-10 23:07:32] Product org.eclipse.products.epp.package.java.mars
[2016-03-10 23:07:32] Bundle org.eclipse.oomph.setup 1.3.0.v20160213-0953, build=2199, branch=7194e06d06a87ced95779121a8281b59b9abdf81, commit=7194e06d06a87ced95779121a8281b59b9abdf81
[2016-03-10 23:07:32] Bundle org.eclipse.oomph.setup.core 1.3.0.v20160213-0953, build=2199, branch=7194e06d06a87ced95779121a8281b59b9abdf81, commit=7194e06d06a87ced95779121a8281b59b9abdf81
[2016-03-10 23:07:32] Bundle org.eclipse.oomph.setup.p2 1.3.0.v20160213-0953, build=2199, branch=7194e06d06a87ced95779121a8281b59b9abdf81, commit=7194e06d06a87ced95779121a8281b59b9abdf81
[2016-03-10 23:07:32] Performing P2 Director (Eclipse IDE for Java Developers (Mars))
[2016-03-10 23:07:32] Offline = false
[2016-03-10 23:07:32] Mirrors = true
[2016-03-10 23:07:32] Resolving 5 requirements from 3 repositories to C:\Users\Cassie_\eclipse\java-mars2\eclipse
[2016-03-10 23:07:32] Requirement epp.package.java [4.5.0,4.6.0)
[2016-03-10 23:07:32] Requirement org.eclipse.platform.feature.group [4.5.0,4.6.0)
[2016-03-10 23:07:32] Requirement org.eclipse.rcp.feature.group [4.5.0,4.6.0)
[2016-03-10 23:07:32] Requirement org.eclipse.jdt.feature.group [3.11.0,3.12.0)
[2016-03-10 23:07:32] Requirement org.eclipse.oomph.setup.feature.group
[2016-03-10 23:07:32] Repository http://download.eclipse.org/technology/epp/packages/mars
[2016-03-10 23:07:32] Repository http://download.eclipse.org/releases/mars/201602261000
[2016-03-10 23:07:32] Repository http://download.eclipse.org/oomph/updates/milestone/latest
[2016-03-10 23:11:08] ERROR: org.eclipse.equinox.p2.transport.ecf code=1002 Unable to read repository at http://download.eclipse.org/releases/mars/201602261000/content.xml.xz.
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:198)
at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:178)
at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:137)
at java.io.FilterInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:198)
at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:178)
at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:137)
at java.io.FilterInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer$1.performFileTransfer(AbstractRetrieveFileTransfer.java:178)
at org.eclipse.ecf.filetransfer.FileTransferJob.run(FileTransferJob.java:73)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2016-03-10 23:11:08]
就是这样的，求大神帮忙，要开始写作业了啊！！
PS:就是直接又下了一个Eclipse，然后运行.exe文件的时候，出错了。打不开。
