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

Question

I would like install R on my laptop Mac OS X version 10.7.3

I downloaded the last version and I double click on it and it was installed, when i start up I get the following error, I searched in internet but I could not solve the problem, any help would be appreciated

the errors are

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. [History restored from /Users/nemo/.Rapp.history]

Answer 1

Follow the steps below to solve this issue:

• Open Terminal
• Run  

defaults write org.R-project.R force.LANG en_US.UTF-8

• Close Terminal and RStudio
• Start RStudio

OR

• Open RStudio
• Type and run

system("defaults write org.R-project.R force.LANG en_US.UTF-8")