Endless repository migration

[indirect]

Running Boxen while using puppet-homebrew 2.1.0 seems to still cause repeated repository migration errors:

Could not update: Execution of 'brew update' returned 1: ==> Homebrew has enabled anonymous aggregate user behaviour analytics.
Read the analytics documentation (and how to opt-out) here:
  http://docs.brew.sh/Analytics.html

Error: /usr/local/Homebrew already exists.
Please remove it manually or uninstall and reinstall Homebrew into a new
location as the migration cannot be done automatically.

Any theories about how to resolve this?

[jacobbednarz]

@salimane experienced this in boxen/our-boxen#834 (comment) however I've never been able to pin point exactly why this happens. There is a huge thread over at Homebrew/brew#987 which shows Boxen users aren't the only ones impacted here. 😢

Internally, we've had most success with something like the following:

• mv /usr/local/Homebrew /usr/local/homebrew_backup
• boxen

If you check out that thread, you might also be able to use some of their steps as well to work out which bit is failing for you.