Update documentation and help screen about invalid config files

.github/ISSUE_TEMPLATE.md

@@ -6,6 +6,8 @@ If you're not sure if it's a real bug or if it's just you, please open a topic o
 
 Problems installing or configuring your MagicMirror? Check out: [https://forum.magicmirror.builders/category/10/troubleshooting](https://forum.magicmirror.builders/category/10/troubleshooting)
 
+A common problem is that your config file could be invalid. Please run in your MagicMirror directory: `npm run config:check` and see if it reports an error.
+
 ## I found a bug in the MagicMirror installer
 
 If you are facing an issue or found a bug while trying to install MagicMirror via the installer please report it in the respective GitHub repository:

CHANGELOG.md

@@ -20,6 +20,7 @@ _This release is scheduled to be released on 2021-04-01._
 - Cleaned up old code on server side.
 - Convert `-0` to `0` when displaying temperature.
 - Code cleanup for FEELS like and added {DEGREE} placeholder for FEELSLIKE for each language
+- Update documentation and help screen about invalid config files
 
 ### Removed
 

js/app.js

@@ -49,7 +49,7 @@ function App() {
 	let nodeHelpers = [];
 
 	/**
-	 * Loads the config file. Combines it with the defaults,  and runs the
+	 * Loads the config file. Combines it with the defaults, and runs the
 	 * callback with the found config as argument.
 	 *
 	 * @param {Function} callback Function to be called after loading the config
@@ -154,6 +154,9 @@ function App() {
 	function loadModules(modules, callback) {
 		Log.log("Loading module helpers ...");
 
+		/**
+		 *
+		 */
 		function loadNextModule() {
 			if (modules.length > 0) {
 				const nextModule = modules[0];

js/defaults.js

@@ -43,7 +43,7 @@ var defaults = {
 			module: "helloworld",
 			position: "middle_center",
 			config: {
-				text: "Please create a config file."
+				text: "Please create a config file or check the existing one for errors."
 			}
 		},
 		{
@@ -59,7 +59,7 @@ var defaults = {
 			position: "middle_center",
 			classes: "xsmall",
 			config: {
-				text: "If you get this message while your config file is already<br>created, your config file probably contains an error.<br>Use a JavaScript linter to validate your file."
+				text: "If you get this message while your config file is already created,<br>" + "it probably contains an error. To validate your config file run in your MagicMirror directory<br>" + "<pre>npm run config:check</pre>"
 			}
 		},
 		{