catkin_create_android_repo error: can't encode character

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Hi everyone, I am starting with Ros installing Hydro on Ubuntu 13.04 following

(ROS WIKI URL)/wiki/sig/Rosjava/Android%20Development%20Environment

I can compile android_core ok.

When I try to create my own repo following

(ROS WIKI URL)/wiki/rosjava_tools/hydro

I found the follow error:

$ catkin_create_android_repo my_project android_core rosjava_core android_extras

[error] 'ascii' codec can't encode character u'\xed' in position 34: ordinal not in range(128) : <type 'exceptions.unicodeencodeerror'="">

a directory named my_project is created with an empty settings.gradle.

Locales on my machine are set to es_ES.UTF-8, but I have tried putting LC_ALL=C with the same results.

Apt is configured to download ROS packages from "deb PACKAGES_ROS_ORG_URL/ros/ubuntu raring main"

Any help will be wellcome

Thanks in advance