No Character Encoding Found! Falling back to UTF-8.
I was not able to extract a character encoding labeling from any of the valid sources for such information. Without encoding information it is impossible to reliably validate the document. I'm falling back to the "UTF-8" encoding and will attempt to perform the validation, but this is likely to fail for all non-trivial documents.
Mais encore? Qu'est ce que cela veut dire?
w3c validator & code source