My brand new Delphi XE shows hundreds of errors in \'Structure\' panel. It shows errors like \'Undeclared FileExists at line 130\' or \'Undeclared Create at line 242\'. Even
Yeah, CodeInsight and ErrorInsight are known to have lots of problems. They've gotten a bit better each version for a while now, but there's still a lot to be done. Andreas Hausladen, who's probably the smartest guy in the Delphi community, has done a lot of poking around in the IDE internals, and he says they have race condition-based bugs that probably can't be fixed without a total rewrite.
If these fake errors are giving you trouble, you can probably disable them, as Ken mentioned in his comment.