R on Mac – Warning messages: Setting LC_CTYPE failed, using “C”

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During startup – Warning messages:
1: Setting LC_CTYPE failed, using “C”
2: Setting LC_COLLATE failed, using “C”
3: Setting LC_TIME failed, using “C”
4: Setting LC_MESSAGES failed, using “C”
5: Setting LC_PAPER failed, using “C”
[R.app GUI 1.50 (6126) x86_64-apple-darwin9.8.0]

WARNING: You’re using a non-UTF8 locale, therefore only ASCII characters will work. Please read R for Mac OS X FAQ (see Help) section 9 and adjust your system preferences accordingly.

 

answer:

  1. Open Terminal
  2. Write or paste in: defaults write org.R-project.R force.LANG en_US.UTF-8
  3. Close Terminal
  4. Start R