How to add a new version of jar into the Clear Case Source Control
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I am trying to upgrade the commons-lang-2.0.jar to commons-lang-2.4.jar. When trying to add the 2.4 jar to the source control Clear Case id throwing the following error:

    An element with this name (commons-lang-2.4.jar) has ALREADY been created in ClearCase for
    this directory [lib], may be in a different version history of this directory that the one
    you are seeing.
    Review the version history of this directory [lib] to find it.
    
I feel this is because commons-lang-2.0 jar is existing in the lib folder and before adding 2.4 i need to remove 2.0. Can someone tell me if I am right? If so How can i remove 2.0 jar and replace it with 2.4?