I am getting error while I am trying to install the Visual Studio Plugin using Installation Manager

Installing RTC 4.0.6 VS2010 IDE Installer in silent mode, please wait...

ERROR: Installation data has incompatible version 1.7.3; expected 1.7.0. Newer version of the Installation Manager was used on this system.

java.io.IOException: Installation data has incompatible version 1.7.3; expected 1.7.0. Newer version of the Installation Manager was used on this system.

00:06.17 ERROR [main] com.ibm.cic.agent.core.application.HeadlessApplication run

  Installation data has incompatible version 1.7.3; expected 1.7.0. Newer version of the Installation Manager was used on this system.

  java.io.IOException: Installation data has incompatible version 1.7.3; expected 1.7.0. Newer version of the Installation Manager was used on this system.

  java.io.IOException: Installation data has incompatible version 1.7.3; expected 1.7.0. Newer version of the Installation Manager was used on this system.

    at com.ibm.cic.agent.internal.core.InstallRegistryParser.parse(InstallRegistryParser.java:160)

    at com.ibm.cic.agent.internal.core.InstallRegistry.load(InstallRegistry.java:679)

    at com.ibm.cic.agent.internal.core.InstallRegistry.openFile(InstallRegistry.java:485)

    at com.ibm.cic.agent.internal.core.InstallRegistry.open(InstallRegistry.java:429)

After seeing this, I found that the user already installed RTC using Installation Manager 1.7.0 and so I uninstalled it, but while uninstalled it didnt ask for uninstall its related packages and also when I check the installed packages it dint show up the RTC package and no Installation Manager folder present in C drive Program Files.

After uninstalling I again tried the silent install, it again failed with same error, so I tried to install tjhe IM 1.7.3, at that time I am getting the below error 

ERROR: java.lang.IllegalStateException: No metadata found for installed package com.ibm.team.install.rtc.client.eclipse 4.0.6000.RTC-I20140205-1437-r406.

java.lang.IllegalStateException: No metadata found for installed package com.ibm.team.install.rtc.client.eclipse 4.0.6000.RTC-I20140205-1437-r406.

com.ibm.cic.agent.internal.core.InstallRegistry$ProfileInstallRegistry.getInstalledOfferings(InstallRegistry.java:1419)

com.ibm.cic.agent.core.AgentUtil$SingletonOfferingCheck.<init>(AgentUtil.java:1907)

com.ibm.cic.agent.core.AgentUtil.doValidateCompatibleOfferings(AgentUtil.java:675)

com.ibm.cic.agent.core.AgentUtil.validateCompatibleJobs(AgentUtil.java:630)

com.ibm.cic.agent.internal.core.Director.doInstall(Director.java:954)

com.ibm.cic.agent.internal.core.Director.install(Director.java:631)

com.ibm.cic.agent.core.Agent.install(Agent.java:1797)

com.ibm.cic.agent.core.Agent.install(Agent.java:1738)

com.ibm.cic.agent.core.internal.commands.InstallCommand.execute(InstallCommand.java:244)

com.ibm.cic.agent.core.internal.commands.AbstractInstallCommand.execute(AbstractInstallCommand.java:336)

com.ibm.cic.agent.core.internal.commands.Input.executeCommands(Input.java:358)

com.ibm.cic.agent.core.application.HeadlessApplication.run(HeadlessApplication.java:599)

com.ibm.cic.agent.core.application.HeadlessApplication.run(HeadlessApplication.java:482)

com.ibm.cic.agent.core.application.HeadlessApplication.runAndReport(HeadlessApplication.java:492)

com.ibm.cic.agent.core.application.HeadlessApplication.runAgentNoStdout(HeadlessApplication.java:446)

com.ibm.cic.agent.core.application.HeadlessApplication.runAgent(HeadlessApplication.java:194)

com.ibm.cic.agent.core.application.HeadlessApplication.run(HeadlessApplication.java:151)

com.ibm.cic.agent.core.application.HeadlessApplication.runHeadlessApplication(HeadlessApplication.java:178)

com.ibm.cic.agent.internal.ui.AgentUIApplication.launch(AgentUIApplication.java:180)

com.ibm.cic.agent.internal.ui.AgentUIApplication.start(AgentUIApplication.java:83)

org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)

org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)

org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)

org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)

org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)

sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)

java.lang.reflect.Method.invoke(Method.java:611)

org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)

org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)

org.eclipse.equinox.launcher.Main.run(Main.java:1438)

org.eclipse.equinox.launcher.Main.main(Main.java:1414)

Installation Manager is not present in Registry (regedit) also.

Please help me resolve this.

Thanks

Anbarasu