在：
Version: Juno Service Release 2
Build id: 20130225-0426
但是，现在当我去做更新时，我得到：'没有要搜索的更新站点。您是否希望打开“可用软件站点”首选项？'
这样做表明该列表为空，并且不再有更新站点。 ;（
其他人有这个问题吗？ 知道如何解决它吗？
答案 0 :(得分：2)
将以下xml代码保存为xml文件，并将其导入Preferences -> Install/Update -> Avaliable Software Sites。也许有更多的更新站点（我从我的eclipse中导出它们）和标准的eclipse一样，但它可以解决你的问题。
<?xml version="1.0" encoding="UTF-8"?>
<bookmarks>
<site url="http://download.eclipse.org/releases/indigo" selected="true" name="Indigo repository"/>
<site url="http://download.eclipse.org/releases/juno/" selected="true" name="Juno"/>
<site url="http://download.eclipse.org/linuxtools/update" selected="false" name="Linux Tools"/>
<site url="http://download.eclipse.org/linuxtools/updates-nightly" selected="false" name="Linux Tools"/>
<site url="http://download.eclipse.org/tools/orbit/downloads/drops/R20110523182458/repository/" selected="true" name="Orbit-I20110523182458"/>
<site url="http://download.eclipse.org/tools/orbit/downloads/drops/R20120526062928/repository/" selected="true" name="Orbit-I20120526062928"/>
<site url="http://download.eclipse.org/eclipse/updates/4.2" selected="true" name="The Eclipse Project Updates"/>
<site url="http://community.polarion.com/projects/subversive/download/eclipse/3.0/juno-site/" selected="true" name="Update Site"/>
<site url="http://download.eclipse.org/edapt/update-site/" selected="true" name="Update Site"/>
<site url="http://texlipse.sourceforge.net" selected="true" name="update site: http://texlipse.sourceforge.net"/>
<site url="http://download.eclipse.org/modeling/tmf/xtext/updates/composite/releases/" selected="true" name="Xtext All In One - Releases"/>
<site url="http://download.itemis.de/updates/" selected="true" name="Xtext Composite Update Site"/>
<site url="http://borisvl.github.com/Pdf4Eclipse" selected="false" name=""/>
<site url="http://dev.eclipse.org/svnroot/dsdp/org.eclipse.tm.tcf/releases/0.4.0" selected="false" name=""/>
<site url="http://download.eclipse.org/birt/update-site/3.7" selected="false" name=""/>
<site url="http://download.eclipse.org/datatools/updates" selected="false" name=""/>
<site url="http://download.eclipse.org/eclipse/updates/3.7" selected="false" name=""/>
<site url="http://download.eclipse.org/egit/updates" selected="false" name=""/>
<site url="http://download.eclipse.org/jwt/update-site" selected="false" name=""/>
<site url="http://download.eclipse.org/mat/1.1/update-site/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emf/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emft/eef/updates/0.7.1/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emft/mwe/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emft/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/gmf/updates/milestones/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/gmf/updates/releases/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/m2t/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/m2t/updates/releases/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/m2t/xpand/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/mdt/papyrus/updates/milestones/0.8" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/mdt/papyrus/updates/releases/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/mdt/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/tmf/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/tmf/xtext/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/mylyn/releases/3.6" selected="false" name=""/>
<site url="http://download.eclipse.org/mylyn/releases/indigo/" selected="false" name=""/>
<site url="http://download.eclipse.org/objectteams/updates/2.0" selected="false" name=""/>
<site url="http://download.eclipse.org/objectteams/updates/contrib" selected="false" name=""/>
<site url="http://download.eclipse.org/rt/rap/1.3/runtime" selected="false" name=""/>
<site url="http://download.eclipse.org/rt/rap/1.3/tooling" selected="false" name=""/>
<site url="http://download.eclipse.org/sequoyah/updates/2.0/" selected="false" name=""/>
<site url="http://download.eclipse.org/stp/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/technology/actf/0.9/update-site/" selected="false" name=""/>
<site url="http://download.eclipse.org/technology/emft/updates/" selected="false" name=""/>
<site url="http://download.eclipse.org/technology/epp/updates/udc/" selected="false" name=""/>
<site url="http://download.eclipse.org/technology/subversive/0.7/update-site/" selected="false" name=""/>
<site url="http://download.eclipse.org/tm/updates/3.3" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/cdt/releases/indigo" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/gef/updates/milestones/" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/gef/updates/releases" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/mylyn/update/e3.4/" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/orbit/downloads/drops/R20100519200754/repository" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/orbit/downloads/drops/R20120119162704/repository" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/orbit/downloads/drops/updateSite" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/ptp/updates/indigo/" selected="false" name=""/>
<site url="http://download.eclipse.org/windowbuilder/WB/integration/3.7" selected="false" name=""/>
<site url="http://download.itemis.com/updates/" selected="false" name=""/>
<site url="http://www.eclipse.org/downloads/download.php?file=/diffmerge/releases/0.1.0/EMF-DiffMerge-0.1.0.v20121106-1043-Site-Incubation.zip" selected="true" name=""/>
<site url="http://www.eclipse.org/modeling/emft/?project=search#search" selected="false" name=""/>
<site url="http://www.eclipse.org/modeling/emft/updates/" selected="false" name=""/>
<site url="http://www.eclipse.org/modeling/mdt/?project=papyrus#papyrus" selected="false" name=""/>
<site url="http://www.eclipse.org/modeling/updates/" selected="false" name=""/>
</bookmarks>