Reading through a tutorial / blog post, getting all excited, then realizing it was dated 5 year ago, and with a completely obsolete version of the library you're working with.

Bloggers, tech doc people, and companies (I'm looking at YOU IBM) really need to at least date and version their articles! Please!

Mind you, search engines will happily serve up older code even when you're being specific (and no, I didn't mean "dance studio").

Is it any wonder developers bristle when high level management admonishes them for not "looking for help earlier"?