What is the meaning of: “Search tree file's format version number (0) is not supported”?

Question

In macOS 10.13 High Sierra on Xcode 9 I get this log message:

2017-09-28 15:19:28.246511+0800 wr[5376:128702] MessageTracer: load_domain_whitelist_s

Answer 1

I was seeing this problem on a computer that had been updated to High Sierra.

I went to the security and privacy panel in system preferences. On the privacy tab, I unlocked and updated my privacy settings. I set sharing with Apple and 3rd party devs. The problem went away.