xcode-select -switch doesn't work: active developer path does not exist

Question

I have installed Xcode 5 developer preview 3. Before it i had developer preview 2 and now, sometimes in my terminal I see error, for example when I try to autocomplete some comm

Answer 1

It happened to me once: xcode-select -print-path did stick to the same value and wasn't changing. It appeared that it was always equal to DEVELOPER_DIR environment variable. According to the manpage of xcode-select:

When DEVELOPER_DIR is set, its value will be used instead of the value last passed to -switch xcode_path

So, unsetting DEVELOPER_DIR makes xcode-select -switch working.