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In this step by step guide we will use the German language files as an example. After you installed VIVO (as described here), clone your desired VIVO-language and Vitro-language folders/repositories (in this example we will use the files from https://github.com/vivo-DE). Be sure to use the theme 'wilma' or 'tenderfoot' for this to work without issues.  Be sure to use the theme 'wilma' or 'tenderfoot' for this to work without issues. 

• Edit the vivo_home_dir/config/runtime.properties file in your VIVO home directory:
  
  • uncomment/add RDFService.languageFilter = true
  • uncomment/add languages.selectableLocales = en_US, de_DE
• Restart the tomcat
• You should now be able to select your installed language (in this case German) in the header of your VIVO site

Building VIVO and Vitro language repositories from source (for developers)

• Clone the VIVO-languages and Vitro-languages repositories to your local machine.
• Go into each language folder (VIVO-language and Vitro-language) and install them with Maven using mvn install

• Go into the VIVO project folder and uncomment the section for multiple language support (search for '<!-- Dependencies for multilingual support -->' and '<!-- Overlays for multilingual support -->' inside of the files)  in each of the pom.xml files listed below:

  • Vitro/installer/webapp/pom.xml (Uncomment dependencies and overlays)

  • VIVO/installer/home/pom.xml (Uncomment dependencies)

  • VIVO/installer/webapp/pom.xml(Uncomment dependencies and overlays)

  Change the <version> in the two pom.xml files to the same version as in the 'VIVO-language/pom.xml' and 'Vitro-language/pom.xml' file respectively.  You may need to change the version in multiple places in the files.
• Build VIVO from the VIVO project folder using folder using mvn install -o -s installer/my-settings.xml (Note the -o flag, this forces maven to use the language projects from your local repository instead of downloading from a remote repository)  
• Edit the vivo_home_dir/config/runtime.properties file in your VIVO home directory:
  
  • uncomment/add RDFService.languageFilter = true
  • uncomment/add languages.selectableLocales = en_US, de_DE
• Restart the tomcat
• You should now be able to select your installed language (in this case German) in the header of your VIVO site

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• Warn if a specialized file has no default version.
• Warn about duplicate keys, keys with empty values.
• Warn about keys that do not appear in the default version.
• If the "complete" flag is set,
  • Warn if the default version is not found.
  • Warn about missing keys, compared to the default version.

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