Can not install RTC-Client-p2Repo-3.0.1 from eclipse

Hi,
I download the RTC-Client-p2Repo-3.0.1 and try to install into eclipse via "install new software", but fail on following problem.

My eclipse version is 3.7.0(Idigo), before installing the RTC plugin I have installed other plugin.

******************
Cannot complete the install because of a conflicting dependency.
Software being installed: Rational Team Concert Client Feature 3.0.1.RTC-I20110602-0252 (com.ibm.team.rtc.client.feature.feature.group 3.0.1.RTC-I20110602-0252)
Software currently installed: Eclipse IDE for Java EE Developers 1.4.1.20110909-1818 (epp.package.jee 1.4.1.20110909-1818)
Only one of the following can be installed at once:
XSD Model 2.5.0.v200906151043 (org.eclipse.xsd 2.5.0.v200906151043)
XSD Model 2.7.0.v20110606-0949 (org.eclipse.xsd 2.7.0.v20110606-0949)
Cannot satisfy dependency:
From: Rational Team Concert Client Feature 3.0.1.RTC-I20110602-0252 (com.ibm.team.rtc.client.feature.feature.group 3.0.1.RTC-I20110602-0252)
To: org.eclipse.xsd.feature.group 0.0.0
Cannot satisfy dependency:
From: Eclipse IDE for Java EE Developers 1.4.1.20110909-1818 (epp.package.jee 1.4.1.20110909-1818)
To: org.eclipse.epp.package.jee.feature.feature.group
Cannot satisfy dependency:
From: Java EE IDE Feature 1.4.1.20110909-1818 (org.eclipse.epp.package.jee.feature.feature.group 1.4.1.20110909-1818)
To: org.eclipse.jpt.jaxb.feature.feature.group 0.0.0
Cannot satisfy dependency:
From: Dali Java Persistence Tools - JAXB Core 1.0.1.v201108080010 (org.eclipse.jpt.jaxb.core 1.0.1.v201108080010)
To: bundle org.eclipse.xsd
Cannot satisfy dependency:
From: XSD - XML Schema Definition Model 2.5.0.v200906151043 (org.eclipse.xsd.feature.group 2.5.0.v200906151043)
To: org.eclipse.xsd