A tip upon installing JDT (Java Development Tools) on Eclipse CDT

I had an IDE Eclipse Indigo CDT (a version of Eclipse that's dedicated for C & C++ w/o having Java development feature). While trying to add Java Development Tools by "Help -> Install New Software -> Indigo -> Programming Language -> Java", I got a following error:

Cannot complete the install because of a conflicting dependency.
  Software being installed: Eclipse Java Development Tools 3.7.1.r371_v20110810-0800-7z8gFcoFMLfTabvKsR5Qm9rBGEBK (org.eclipse.jdt.feature.group 3.7.1.r371_v20110810-0800-7z8gFcoFMLfTabvKsR5Qm9rBGEBK)
  Software currently installed: Shared profile 1.0.0.1317581458852 (SharedProfile_epp.package.cpp 1.0.0.1317581458852)
  Only one of the following can be installed at once:
    Java Development Tools Core 3.7.0.v_B61 (org.eclipse.jdt.core 3.7.0.v_B61)
    Java Development Tools Core 3.7.1.v_B76_R37x (org.eclipse.jdt.core 3.7.1.v_B76_R37x)
    Object Teams Development Tooling Core 3.7.0.v_OTDT_r200_201106070730 (org.eclipse.jdt.core 3.7.0.v_OTDT_r200_201106070730)
    Object Teams Development Tooling Core 3.7.1.v_OTDT_r201_201109101025 (org.eclipse.jdt.core 3.7.1.v_OTDT_r201_201109101025)
  Cannot satisfy dependency:
    From: Shared profile 1.0.0.1317581458852 (SharedProfile_epp.package.cpp 1.0.0.1317581458852)
    To: org.eclipse.jdt.core [3.7.0.v_B61]
  Cannot satisfy dependency:
    From: Eclipse Java Development Tools 3.7.1.r371_v20110810-0800-7z8gFcoFMLfTabvKsR5Qm9rBGEBK (org.eclipse.jdt.feature.group 3.7.1.r371_v20110810-0800-7z8gFcoFMLfTabvKsR5Qm9rBGEBK)
    To: org.eclipse.jdt.core [3.7.1.v_B76_R37x]

Solution was to update CDT first by "Help -> Check for Updates", then redo installing Java Development Tools.

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Tom yum goong ramen at Tinun Ginza, Tokyo, Japan.