java - Eclipse Juno and Maven plugin fails with project update -

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i having problem long time . have red error image on projects. in problem window displayed

project configuration not up-to-date pom.xml. run maven->update project or use quick fix.

when right click , click update project , error popup displayed saying,

an internal error occurred during: "updating maven project". org/eclipse/m2e/wtp/wtpprojectsutil

anybody knows how fix problem, please.

from preferences>type 'wtp' > deselect option build , clean again


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