在Ubuntu上用Eclipse安装PyDev的麻烦

我正在尝试为Ecplise安装PyDev 3.2插件,但每次运行安装时,都会出现以下错误:

"安装软件"遇到了问题.收集要安装的项目时发生错误

详细信息:收集要安装的项目会话上下文时发生错误:(profile = PlatformProfile,phase = org.eclipse.equinox.internal.p2.engine.phases.Collect,operand =,action =).下载工件的问题:osgi.bundle,com.python.pydev,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile6646901265687886222.jar处理文件签名时出错:/tmp/signatureFile6646901265687886222.jar下载工件的问题:osgi.bundle,com.python.pydev.analysis,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile8322218222344706204.jar处理文件签名时出错:/tmp/signatureFile8322218222344706204.jar下载工件的问题:osgi.bundle,com.python.pydev.codecompletion,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile4187876602334151122.jar处理文件签名时出错:/tmp/signatureFile4187876602334151122.jar下载工件时出现问题:osgi.bundle,com.python.pydev.debug,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile840461721745061470.jar处理文件签名时出错:/tmp/signatureFile840461721745061470.jar下载工件的问题:osgi.bundle,com.python.pydev.fastparser,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile5939716086787202212.jar处理文件签名时出错:/tmp/signatureFile5939716086787202212.jar下载工件时出现问题:osgi.bundle,com.python.pydev.refactoring,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile5983502155453326050.jar处理文件签名时出错:/tmp/signatureFile5983502155453326050.jar下载工件的问题:osgi.bundle,org.python.pydev,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile600668738412712747.jar处理文件签名时出错:/tmp/signatureFile600668738412712747.jar下载工件时出现问题:osgi.bundle,org.python.pydev.ast,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile6189606464558584760.jar处理文件签名时出错:/tmp/signatureFile6189606464558584760.jar下载工件时出现问题:osgi.bundle,org.python.pydev.core,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile6135779137355138711.jar处理文件签名时出错:/tmp/signatureFile6135779137355138711.jar下载工件时出现问题:osgi.bundle,org.python.pydev.customizations,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile2057323306953091956.jar处理文件签名时出错:/tmp/signatureFile2057323306953091956.jar下载工件的问题:osgi.bundle,org.python.pydev.debug,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile3794762954725200474.jar处理文件签名时出错:/tmp/signatureFile3794762954725200474.jar下载工件的问题:osgi.bundle,org.python.pydev.django,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile4700622517373608280.jar处理文件签名时出错:/tmp/signatureFile4700622517373608280.jar下载工件时出现问题:org.eclipse.update.feature,org.python.pydev.feature,3.2. 0.201312292215.读取签名内容时出错:/tmp/signatureFile4649080137514243742.jar处理文件签名时出错:/tmp/signatureFile4649080137514243742.jar下载工件的问题:osgi.bundle,org.python.pydev.help,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile7141789939237504108.jar处理文件签名时出错:/tmp/signatureFile7141789939237504108.jar下载工件的问题:osgi.bundle,org.python.pydev.jython,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile999992598312145305.jar处理文件签名时出错:/tmp/signatureFile999992598312145305.jar下载工件时出现问题:osgi.bundle,org.python.pydev.parser,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile2339395630123873267.jar处理文件签名时出错:/tmp/signatureFile2339395630123873267.jar下载工件的问题:osgi.bundle,org.python.pydev.refactoring,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile5389215905872460392.jar处理文件签名时出错:/tmp/signatureFile5389215905872460392.jar下载工件时出现问题:osgi.bundle,org.python.pydev.shared_core,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile2299502152167212708.jar处理文件签名时出错:/tmp/signatureFile2299502152167212708.jar下载工件的问题:osgi.bundle,org.python.pydev.shared_interactive_console,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile5902210021605760235.jar处理文件签名时出错:/tmp/signatureFile5902210021605760235.jar下载工件时出现问题:osgi.bundle,org.python.pydev.shared_ui,3.2.0.201312292215.读取签名内容时出错:/tmp/signatureFile1585283163601835907.jar处理文件签名时出错:/tmp/signatureFile1585283163601835907.jar

Ubuntu版本:12.04.4 LTS

Eclipse平台:3.7.2(通过软件中心下载)

PyDev版本:3.2

我尝试了各种解决方案,包括通过命令提示符解压缩和安装.谢谢.