[ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client

[farahnahwa]

request.post({
url: url,
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': "Basic " + base64.encode("SB-Mid-server-w5e5xXjxtHL7ecHJ48qcnEhT:")
},
body: JSON.stringify(reqBody)
}, function(err, response, body) {
if(err) {
console.log(err);
console.log("error bos")
} else {
var respObj = parseJson(body);
console.log(body);

}

});

how it solve please
while the response was successful