INVALID_CONTENT_TYPE when creating an envelope

[ihteandr]

I want create the envelop but get this
'{\r\n "errorCode": "INVALID_CONTENT_TYPE",\r\n "message": "Content Ty
pe specified is not supported."\r\n}' }
this is the code
var CRLF = '\r\n';
var form = new FormData();
var filename = "test.pdf";
var documentId = Date.now();
var recipientId = settings.accountID;

    var json_data_options = {
        header: CRLF + '--' + form.getBoundary() + CRLF + 'Content-Type: application/json' + CRLF
    };
    for(var key in args.signers){
        args.signers[key].recipientId = recipientId;
    }
    var json_data = {
        "status":"sent",
        "emailBlurb":"Test Email Body",
        "emailSubject": "Test Email Subject - EnvelopeDefFull",
        "documents": [{
            "name": filename,
            "documentId": documentId,
            "order":"1"
        }],
        "recipients": {
            "signers" : args.signers
        }
    };
    form.append("form-data", JSON.stringify(json_data), json_data_options);

    var file_options =  {
        header: CRLF + '--' + form.getBoundary() + CRLF + 'Content-Type: application/pdf' + CRLF
    };
    form.append('file: filename="' + filename + '";documentId='+ documentId, args.file, file_options);

    var options = {
        method: "POST",
        uri: settings.baseUrl + "/accounts/" + settings.accountID + "/envelopes",
        headers: {
            "X-DocuSign-Authentication": JSON.stringify({
                Username: settings.username,
                Password: settings.password,
                IntegratorKey: settings.integrationKey
            }),
            "Accept": "application/json",
            "Content-Type": "multipart/form-data; boundary=" + form.getBoundary()
        },
        form: form
    };
    return new Promise(function(resolve, reject){
        request(options, function(error, response, body){
            if (!error && response.statusCode == 200) {
                resolve(JSON.parse(body));
            } else {
                error = {
                    error: error,
                    response: response,
                    body:body
                };
                reject(error);
            }
        });
    });

what can be a problem?
I try add the accountID into headers but it doesn't help

[jondkinney]

@ihteandr Sorry for the late reply. Are you using the version from rubygems? Or the master branch? I need to get a new gem version pushed to rubygems, but in the mean time if you point to the master branch in your Gemfile, does this same error still happen?

[recurrence]

This seems stale at this point, recommend close.