iTextSharp on iOS with IL2CPP : error

Hello,

When I compile with Mono, everything works fine, but when I compile with IL2CPP, I get this error:

ArgumentException: No message found for a.tab.position.may.not.be.lower.than.0.yours.is.1

The line that causes this error is: doc.Add(new Paragraph(new Chunk("\n")); (a test)

In the log, after the exception log, I get a lot of messages : "No message found for 1.not.found.as.resource"

I don't understand those messages at all, really.. do you have any idea what they mean?

I'm using Unity 4.6.2f1 on a MAC (an old project, I don't want to create bugs by updating Unity too much..)

Thanks in advance,

Sylafrs