Invalid header ???Manifest-Version during ant read my manifest

my Manifest.mf's code set is UTF-8. During ant task i开发者_如何学Gos trying to read it, throw "invalid header ???Manifest-Version".

The other Manifests work fine, but their code set is ANSI. So I convert my manifest to be ANSI. It works fine. Maybe ant task only works with ANSI instead of UTF-8....