upgrade cannot be applied

I have 3 dolphin sites in building, 2 have upgraded to 7.0.1 manualy with no probs.

The 3rd - on the same server, all same settings - same procedure - when I enter www.sitename.com/upgrade  I get the message

any reason this would work for my other 2 sites but not this one? Everything is set and done exactly the same.

Most probably you have some RC version installed.

You can check the version installed in inc/header.inc.php file and looking up for sys_tmp_version option name in sys_options table.

In this case you need to upgrade to 7.0.0 first and then apply 7.0.1 patch.