I’m use ASP.NET MVC end I take this error only in FF. Why I take this error message? What is the cause of this?
I don’t understand where the source of this error. Anyone have any thoughts?
Next Error:
asked Sep 29, 2017 at 10:47
0
Check this link for more information
Based on my research, the error message is only generated by FireFox
when the render page is blank in Internet. For some reason, .NET
generates a response type of “application/xml” when it creates an
empty page. Firefox parses the file as XML and finding no root
element, spits out the error message.
in other words, this is a known Firefox issue
answered Sep 29, 2017 at 10:56
Master YodaMaster Yoda
4,27410 gold badges42 silver badges76 bronze badges
4
I changed the type of return value in Action method and it worked. More details can be found in my article on this topic.
Changed from
return Ok();
to
return Json("Ok");
answered Jan 30, 2019 at 8:49
OviniOvini
3514 silver badges13 bronze badges
1
public IActionResult MethodName()
{
// YOUR CODE
return StatusCode(204);
}
Code 204 -The server successfully processed the request, and is not returning any content
For more details about status code check this page:
List of HTTP status codes
answered Oct 28, 2020 at 11:08
I fixed this in my app by setting the Content-Type
header on the server to text/plain
. Like this in Node:
res.setHeader('Content-Type', 'text/plain');
Use whatever MIME type is appropriate for your data, ie application/json
, etc.
answered Apr 10, 2019 at 13:26
anderspitmananderspitman
8,92010 gold badges40 silver badges59 bronze badges
I’ve seen the XML Parsing error: no root element
error in a few different situations. It’s typically present in the Firefox developer console only.
-
Returning a
200 OK
response code with an empty body. Your server should instead return a204 No Content
response code. -
Returning a
204 No Content
response code and then attaching content to the response. Your server should instead return a200 OK
response code. -
Returning an incorrect
Content-Type
. Set it to the same type that’s used in your response body (JSON, XML, plaintext, etc.), or it could get parsed incorrectly.
If none of these fixes your issue, I would review all of your response headers for correctness. Other fields like Content-Length
could presumable interfere as well.
answered Dec 29, 2020 at 13:16
This is the top Google result for this error message and I don’t see an answer covering another tricky case yet, so here goes:
This will also happen if your SVG is served correctly, but is missing the closing </svg>
tag! For example, in case the response is only served partially, because it is a streaming response and it errors out mid-way…
answered Mar 9, 2021 at 20:28
Tomáš HübelbauerTomáš Hübelbauer
8,73712 gold badges61 silver badges121 bronze badges
I resolved my problem with
return NoContent();
It seems more clear When you want to return nothing.
answered Jul 3, 2021 at 6:16
This can happen too, if you have a [ValidateAntiForgeryToken] attribute on your controller action and try to submit the form without an actual token. You can render the token explicitly with
@Html.AntiForgeryToken()
which is the preferred solution or remove the validation attribute.
answered Jan 19, 2020 at 9:15
GerardVGerardV
3652 silver badges11 bronze badges
We were getting this error when POSTing an axios call. And our test server was not in the
allowed-origin:
list of hosts. Adding our server to allowed-origin in the application.yml resolved the issue.
Tieson T.
20.8k6 gold badges76 silver badges92 bronze badges
answered May 30, 2019 at 21:01
ShahriarShahriar
3034 silver badges12 bronze badges
I fixed by returning OkObjectResult instead of Ok().
Old Code:
Return Ok();
New Code:
return new OkObjectResult(true);
Note: OkObjectResult can be used after adding namespace Microsoft.AspNetCore.Mvc.Infrastructure.
answered Jul 7, 2022 at 22:34
If you go to about:config
and set:
privacy.webrtc.legacyGlobalIndicator = false
The warning won’t appear.
answered Mar 6 at 13:24
dagelfdagelf
1,4181 gold badge13 silver badges25 bronze badges
I am reading xml from xxx URl but i am getting error as Root element is missing.
My code to read xml response is as follows:
XmlDocument doc = new XmlDocument();
doc.Load("URL from which i am reading xml");
XmlNodeList nodes = doc.GetElementsByTagName("Product");
XmlNode node = null;
foreach (XmlNode n in nodes)
{
}
and the xml response is as follows:
<All_Products>
<Product>
<ProductCode>GFT</ProductCode>
<ProductName>Gift Certificate</ProductName>
<ProductDescriptionShort>Give the perfect gift. </ProductDescriptionShort>
<ProductDescription>Give the perfect gift.</ProductDescription>
<ProductNameShort>Gift Certificate</ProductNameShort>
<FreeShippingItem>Y</FreeShippingItem>
<ProductPrice>55.0000</ProductPrice>
<TaxableProduct>Y</TaxableProduct>
</Product>
</All_Products>
Can you please tell where i am going wrong.
psubsee2003
8,5538 gold badges61 silver badges79 bronze badges
asked Apr 12, 2012 at 14:35
3
Just in case anybody else lands here from Google, I was bitten by this error message when using XDocument.Load(Stream) method.
XDocument xDoc = XDocument.Load(xmlStream);
Make sure the stream position is set to 0 (zero) before you try and load the Stream, its an easy mistake I always overlook!
if (xmlStream.Position > 0)
{
xmlStream.Position = 0;
}
XDocument xDoc = XDocument.Load(xmlStream);
answered May 20, 2014 at 10:26
PhilPhil
1,56911 silver badges23 bronze badges
1
Make sure you XML looks like this:
<?xml version="1.0" encoding="utf-8"?>
<rootElement>
...
</rootElement>
Also, as noted at https://landesk378.rssing.com/chan-11533214/article34.html —
a blank XML file will return the same Root elements is missing exception. Each XML file must have a root element / node which encloses all the other elements.
answered Apr 12, 2012 at 14:42
codercoder
13k31 gold badges109 silver badges213 bronze badges
0
Hi this is odd way but try it once
- Read the file content into a string
- print the string and check whether you are getting proper XML or not
- you can use
XMLDocument.LoadXML(xmlstring)
I try with your code and same XML without adding any XML declaration it works for me
XmlDocument doc = new XmlDocument();
doc.Load(@"H:WorkSpaceC#TestDemosTestDemosXMLFile1.xml");
XmlNodeList nodes = doc.GetElementsByTagName("Product");
XmlNode node = null;
foreach (XmlNode n in nodes)
{
Console.WriteLine("HI");
}
As stated by Phil in below answer please set the xmlStream position to zero if it is not zero.
if (xmlStream.Position > 0)
{
xmlStream.Position = 0;
}
XDocument xDoc = XDocument.Load(xmlStream);
answered Apr 12, 2012 at 14:44
RaghuveerRaghuveer
2,6303 gold badges29 silver badges58 bronze badges
0
If you are loading the XML file from a remote location, I would check to see if the file is actually being downloaded correctly using a sniffer like Fiddler.
I wrote a quick console app to run your code and parse the file and it works fine for me.
svick
235k50 gold badges384 silver badges513 bronze badges
answered Apr 12, 2012 at 14:42
Tom HazelTom Hazel
3,2022 gold badges20 silver badges20 bronze badges
-
Check the trees.config file which located in config folder…
sometimes (I don’t know why) this file became to be empty like someone delete the content inside…
keep backup up of this file in your local pc then when this error appear – replace the server file with your local file. This is what i do when this error happened. -
check the available space on the server. sometimes this is the problem.
Good luck.
answered Mar 15, 2016 at 8:26
IdoshinIdoshin
3632 silver badges17 bronze badges
1
I had the same problem when i have trying to read xml that was extracted from archive to memory stream.
MemoryStream SubSetupStream = new MemoryStream();
using (ZipFile archive = ZipFile.Read(zipPath))
{
archive.Password = "SomePass";
foreach (ZipEntry file in archive)
{
file.Extract(SubSetupStream);
}
}
Problem was in these lines:
XmlDocument doc = new XmlDocument();
doc.Load(SubSetupStream);
And solution is (Thanks to @Phil):
if (SubSetupStream.Position>0)
{
SubSetupStream.Position = 0;
}
answered Apr 7, 2020 at 12:35
In my case, I found application settings to be corrupted.
So to solve it, simply delete folder in local appdata%appdata%/../Local/YOUR_APP_NAME
.
answered Sep 18, 2022 at 13:58
Problem Description:
I’m use ASP.NET MVC end I take this error only in FF. Why I take this error message? What is the cause of this?
I don’t understand where the source of this error. Anyone have any thoughts?
Next Error:
Solution – 1
Check this link for more information
Based on my research, the error message is only generated by FireFox
when the render page is blank in Internet. For some reason, .NET
generates a response type of “application/xml” when it creates an
empty page. Firefox parses the file as XML and finding no root
element, spits out the error message.
in other words, this is a known Firefox issue
Solution – 2
I changed the type of return value in Action method and it worked. More details can be found in my article on this topic.
Changed from
return Ok();
to
return Json("Ok");
Solution – 3
I fixed this in my app by setting the Content-Type
header on the server to text/plain
. Like this in Node:
res.setHeader('Content-Type', 'text/plain');
Use whatever MIME type is appropriate for your data, ie application/json
, etc.
Solution – 4
We were getting this error when POSTing an axios call. And our test server was not in the
allowed-origin:
list of hosts. Adding our server to allowed-origin in the application.yml resolved the issue.
Solution – 5
This can happen too, if you have a [ValidateAntiForgeryToken] attribute on your controller action and try to submit the form without an actual token. You can render the token explicitly with
@Html.AntiForgeryToken()
which is the preferred solution or remove the validation attribute.
Solution – 6
public IActionResult MethodName()
{
// YOUR CODE
return StatusCode(204);
}
Code 204 -The server successfully processed the request, and is not returning any content
For more details about status code check this page:
List of HTTP status codes
Solution – 7
I’ve seen the XML Parsing error: no root element
error in a few different situations. It’s typically present in the Firefox developer console only.
-
Returning a
200 OK
response code with an empty body. Your server should instead return a204 No Content
response code. -
Returning a
204 No Content
response code and then attaching content to the response. Your server should instead return a200 OK
response code. -
Returning an incorrect
Content-Type
. Set it to the same type that’s used in your response body (JSON, XML, plaintext, etc.), or it could get parsed incorrectly.
If none of these fixes your issue, I would review all of your response headers for correctness. Other fields like Content-Length
could presumable interfere as well.
Solution – 8
This is the top Google result for this error message and I don’t see an answer covering another tricky case yet, so here goes:
This will also happen if your SVG is served correctly, but is missing the closing </svg>
tag! For example, in case the response is only served partially, because it is a streaming response and it errors out mid-way…
Solution – 9
I resolved my problem with
return NoContent();
It seems more clear When you want to return nothing.
Solution – 10
I fixed by returning OkObjectResult instead of Ok().
Old Code:
Return Ok();
New Code:
return new OkObjectResult(true);
Note: OkObjectResult can be used after adding namespace Microsoft.AspNetCore.Mvc.Infrastructure.
Updated
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You may receive an error message stating that there was an XML parsing error – no elements found. There are several ways to solve this problem, and we will talk about them a little later. g.Perform a clean reinstallation of the current version of Firefox and delete the Firefox program folder before installing each new copy of the current version of Firefox rampage. If possible, uninstall the current type of Firefox to clean up the Windows registry and security software spaces.
g.
Updated
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Firm Error 547718 Opened 12 years ago Closed 11 years ago
Categories
(Firefox :: General, Not Working)
People
(Reporter: Anto_naubisah, Unassigned)
Details
(Board: [CLOSE 2011-1-30])
You must document before commenting or making any changes to this type of error.
What does XML Parsing Error no root element found?
According to my research, the error message is generated by FireFox only when the web rendering fan page is empty. For some triggers. NET generates a response type to “application / xml” when it creates a blank web page. Firefox parses the file as XML and does not find the root element, displays it as an error message.
Firm Error 547718 Opened 12 years ago Closed 11 months or even years ago
Categories
(Firefox :: General, Not Working)
People
(Reporter: Anto_naubisah, Unassigned)
Details
(Board: [CLOSE 2011-1-30])
What is XML parsing error?
If the XML parser encounters an error in the XML document during parsing, message RNX0351 is generated. The parser encountered an invalid start of a processing statement, element, comment, or document method declaration outside of the element’s content. 3. The parser found a duplicate attribute name.
User agent: Opera / 9.80 (Windows NT 6.1; U; de) Presto / Version 2.2.15 / 10.10Build ID: Mozilla / 5.0 (Windows; U; Windows NT 6.1; en-US; rv: 1.9.1.8) Gecko / 20100202 Firefox / 3.5.8Though I intend to make my application a web application to fetch research from the server (in XML format). Bad, you can just start another browser.Playable: SometimesPlayback Steps:1. Call all servers with HTTP through your browser (FIREFOX)2. The server returns data in XML format.3. Sometimes the browser could scan it, sometimes not. Sorry, when scanning another browser worksHe's okay.Current results:XML parsing error: part not foundLocation: (My url number)Row 1, column 1:Expected results:At least there are most of the tags that all of your browsers can read, whether or not that is a bug.Mozilla / 5.0 (Windows; U; Windows NT 6.1; en-US; rv: 1.9.1.8) Gecko / 20100202 Firefox / 3.5.8
I'm working with a locale when gd and I have similar problems and their assertions.When I go to http://www.gaidhlig.org.uk/ I get this:Mearachd ann am parsadh XML: taga air a dhroch cheangal. Deal Ree: .At: http://www.gaidhlig.org.Na uk /à € ireamh loidhne 49, colbh 10: --------- ^When you enter http://www.thinkbroadband.com/:Mearachd ann am parsadh XML: mearachd each ann là imhseachadh an iomraidh air bith iomallachIte: jar: file: /// C: /Program%20Files/Namoroka/chrome/toolkit.jar! /Content/global/netError.xhtmlAt ireamh na 10, loidhne colbh 3:% netErrorDTD;- ^I also got reports from one of my testers that reposting prevents them from connecting to * any * site, with most of the following error messages:Mearachd ann am parsadh XML: mearachd ann an là imhseachadh an iomraidh movement bit iomallachIte: jar: file: /// C: /Programme/Namoroka/chrome/toolkit.jar! /Content/global/netError.Na xhtmlat € ireamh loidhne 10, colbh 3: % netErrorDTD;- ^Start XP Prowith Windows, Namoroka 3.6.5pre for the gd locale.
Firefox 34.0, AngularJS Beta:Request url: http: // localhost: 8080 / api / my / profilePolling method: PUTStatus code: HTTP / 1.1 200 OK00: 53: 02.000 Request HeaderUser agent: Mozilla / 5.0 (Windows NT 6.3; WOW64; rv: 34.0) Gecko / 20100101 Firefox / 34.0Referrer: http: // localhost: 8383 / fingeror / index.htmlOrigin: http: // localhost: 8383I2c client type: mobHost: localhost: 8080Content type: application / json; character set = utf-8Content Length: 51Connection: Keep-AliveAccept language: en-US, en; q = 0.5Accept encoding: gzip, deflateAccept: application / json; character set = UTF-8Request body"Date of birth": 640292400000, "Date of birth": 640292400000Response header Î "871 msX-XSS Protection: 1; Mode = blockX-Frame Options: REFUSEcontent type parameters x: nosniffServer: Apache Coyote / 1.1Pragma: no cacheExpiry date: 0Date: Fri 14 November this year 20:53:02 GMTContent length: 0No response textelement not found Profile: 1
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Wskazówki, Jak Naprawić Błąd Nie Znaleziono Elementu Parsera Mozilla XML
Consejos Para Corregir El Error De Elemento No Encontrado Del Analizador XML De Mozilla
Mozilla XML 파서 요소를 찾을 수 없음 오류 수정 팁
Поэтому я делаю простое веб-приложение для входа / регистрации, но получаю следующую ошибку:
XML Parsing Error: no root element found Location: file:///C:/xampp/htdocs/EdgarSerna95_Lab/login.html Line Number 37, Column 3:
а также
XML Parsing Error: no root element found Location: file:///C:/xampp/htdocs/EdgarSerna95_Lab/php/login.phpLine Number 37, Column 3:
вот мой login.php
<?php
header('Content-type: application/json');
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "jammer";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
header('HTTP/1.1 500 Bad connection to Database');
die("The server is down, we couldn't establish the DB connection");
}
else {
$conn ->set_charset('utf8_general_ci');
$userName = $_POST['username'];
$userPassword = $_POST['userPassword'];
$sql = "SELECT username, firstName, lastName FROM users WHERE username = '$userName' AND password = '$userPassword'";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$response = array('firstName' => $row['firstNameName'], 'lastName' => $row['lastName']);
}
echo json_encode($response);
}
else {
header('HTTP/1.1 406 User not found');
die("Wrong credentials provided!");
}
}
$conn->close();
?>
Я провел некоторое исследование об ошибках разбора XML, но мне все еще не удается заставить мой проект работать, я попробовал с Google Chrome и Firefox
3
Решение
АГА! Получил это сегодня по причине, которая заставит меня выглядеть довольно глупо, но который может быть однажды помогите кому-нибудь.
Настроив сервер Apache на моем компьютере, с PHP и так далее … Я получил эту ошибку … и затем понял, почему: я нажал на нужный HTML-файл (т. Е. Тот, который содержит Javascript / JQuery), поэтому в адресной строке браузера было показано «file: /// D: /apps/Apache24/htdocs/experiment/forms/index.html».
То, что вам нужно сделать, чтобы фактически использовать сервер Apache (при условии, что он работает и т. Д.), — это перейти «Http: //localhost/experiments/forms/index.html« в адресной строке браузера.
Для смягчения последствий я до сих пор использовал файл «index.php» и просто изменил на файл «index.html». Немного подвох, так как с первым вы должны получить к нему доступ «должным образом», используя localhost.
7
Другие решения
В Spring MVC Application возникла та же ситуация, что и в объявлении void, и изменив его на String, я решил проблему
@PostMapping()
public void aPostMethod(@RequestBody( required = false) String body) throws IOException {
System.out.println("DoSome thing" + body);
}
к
@PostMapping()
public String aPostMethod(@RequestBody( required = false) String body) throws IOException {
System.out.println("DoSome thing" + body);
return "justReturn something";
}
3
Предполагая, что вы работаете с Javascript, вам нужно поместить заголовок перед отображением ваших данных:
header('Content-Type: application/json');
echo json_encode($response);
0
Убедитесь, что ваш php-сервер работает и что php-код находится в соответствующей папке. Я столкнулся с этой же проблемой, если php не было там. Я также рекомендую поместить ваш html в ту же папку, чтобы предотвратить возникновение перекрестных ошибок при тестировании.
Если это не проблема, убедитесь, что каждый вызов SQL корректен в php, и что вы используете текущие стандарты php … Php меняется быстро, в отличие от html, css и Javascript, поэтому некоторые функции могут быть устаревшими.
Кроме того, я заметил, что вы, возможно, неправильно собираете свою переменную, что также может вызвать эту ошибку. Если вы отправляете переменные через форму, они должны быть в правильном формате и отправлены POST или GET, в зависимости от ваших предпочтений. Например, если бы у меня была страница входа в лабиринт:
HTML
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
<form class="modal-content animate" method="post">
<div class="container">
<label><b>Username</b></label>
<input type="text" id="usernameinput" placeholder="Enter username" name="uname" required>
<label><b>Password</b></label>
<input type="password" id="passwordinput" placeholder="Enter Password" name="psw" required>
<button onclick="document.getElementById('id01').style.display='block'">Sign Up</button>
<button type="button" id="loginsubmit" onclick="myLogin(document.getElementById('usernameinput').value, document.getElementById('passwordinput').value)">Login</button>
</div>
</form>
JavaScript
function myLogin(username, password){
var datasend=("user="+username+"&pwd="+password);
$.ajax({
url: 'makeUserEntry.php',
type: 'POST',
data: datasend,
success: function(response, status) {
if(response=="Username or Password did not match"){
alert("Username or Password did not match");
}
if(response=="Connection Failure"){
alert("Connection Failure");
}
else{
localStorage.userid = response;
window.location.href = "./maze.html"}
},
error: function(xhr, desc, err) {
console.log(xhr);
console.log("Details: " + desc + "nError:" + err);
var response = xhr.responseText;
console.log(response);
var statusMessage = xhr.status + ' ' + xhr.statusText;
var message = 'Query failed, php script returned this status: ';
var message = message + statusMessage + ' response: ' + response;
alert(message);
}
}); // end ajax call
}
PHP
<?php
$MazeUser=$_POST['user'];
$MazePass=$_POST['pwd'];//Connect to DB
$servername="127.0.0.1";
$username="root";
$password="password";
$dbname="infinitymaze";
//Create Connection
$conn = new MySQLi($servername, $username, $password, $dbname);
//Check connetion
if ($conn->connect_error){
die("Connection Failed: " . $conn->connect_error);
echo json_encode("Connection Failure");
}
$verifyUPmatchSQL=("SELECT * FROM mazeusers WHERE username LIKE '$MazeUser' and password LIKE '$MazePass'");
$result = $conn->query($verifyUPmatchSQL);
$num_rows = $result->num_rows;
if($num_rows>0){
$userIDSQL =("SELECT mazeuserid FROM mazeusers WHERE username LIKE '$MazeUser' and password LIKE '$MazePass'");
$userID = $conn->query($userIDSQL);
echo json_encode($userID);
}
else{
echo json_encode("Username or Password did not match");
}
$conn->close();
?>
Было бы полезно, если бы вы включили другие части кода, такие как HTML и JavaScript, так как мне не пришлось бы приводить свой собственный пример, подобный этому. Тем не менее, я надеюсь, что эти указатели помогут!
0