Error 5 Both “ListDefinition2” and “ListDefinition2” contain a file that deploys to the same Package location: SPCustomListFormDemo_Feature2\ListDefinition2\EYDisplay.aspx D:\root\fdr\SandBox\POC\spcustomlistformdemo\SPCustomListFormDemo\Package\Package.package SPCustomListFormDemo

Never thought the .spdata file will be a culprit. The error was caused a duplicate entries in the .spdata file. This happens because we did few moves and copies.

More details can be found at

http://blog.beckybertram.com/Lists/Posts/Post.aspx?ID=94