[antlr-interest] C# target

[forumer at smartmobili.com]

Ok so I have downloaded/unzipped antlr-dotnet-tool-3.4.1.9004.7z and
when I run Antlr3.exe inside a command prompt I get :


$ ./Antlr3.exe
can't Load group file 
C:\Developer\antlr-dotnet-tool-3.4.1.9004\Tool\Templates\messages\languages\fr.stg
Caused by:    ▒ Antlr4.StringTemplate.TemplateGroupFile..ctor(String 
fileName, Char delimiterStartChar, Char delimiterStopChar) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr4.StringTemplate\TemplateGroupFile.cs:ligne 
82


Exception non g▒r▒e▒: System.IO.FileNotFoundException: No such group 
file: 
C:\Developer\antlr-dotnet-tool-3.4.1.9004\Tool\Templates\messages\languages\fr.stg
    ▒ Antlr4.StringTemplate.TemplateGroupFile..ctor(String fileName, 
Char delimiterStartChar, Char delimiterStopChar) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr4.StringTemplate\TemplateGroupFile.cs:ligne 
82
    ▒ Antlr4.StringTemplate.TemplateGroupFile..ctor(String fileName, 
Char delimiterStartChar, Char delimiterStopChar) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr4.StringTemplate\TemplateGroupFile.cs:ligne 
94
    ▒ Antlr3.Tool.ErrorManager.SetLocale(CultureInfo locale) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr3\Tool\ErrorManager.cs:ligne 
432
    ▒ Antlr3.AntlrTool..ctor(String toolPathRoot) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr3\AntlrTool.cs:ligne 127
    ▒ Antlr3.AntlrTool..ctor(String[] args) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr3\AntlrTool.cs:ligne 134
    ▒ Antlr3.AntlrTool.Main(String[] args) dans 
c:\dev\stringtemplate_main\antlrcs\main\Antlr3\AntlrTool.cs:ligne 104

I am using a french windows (nobody's perfect) and it seems to search 
for a localized file but cannot found it.
When I look at source code I can see :

if (!File.Exists(fileName))
                     throw new FileNotFoundException(string.Format("No 
such group file: {0}", fileName));

Is it so important to use the right localized file, wouldn't be simpler 
to use english if it cannot find the right one ?