OrchardCMS/OrchardCore · error · Error

msg

Error message

msg

What it means

jQuery.error is jQuery's generic error-raising helper: it simply throws new Error(msg). The message "msg" indicates an error was thrown through $.error with the literal/placeholder string 'msg', meaning calling code (often a plugin or jQuery internals like data/animation/attribute code) invoked $.error('msg') with an unhelpful or templated message. Any jQuery/plugin code path that detects an invalid state funnels through this throw.

Solutions

  1. Read the full stack trace to find the caller of $.error — that caller defines the real problem, not this throw site.
  2. Replace or fix the calling code that passes the literal 'msg'; supply a descriptive message or fix the invalid state it detected.
  3. Remove/fix the direct $.error('msg') call if it is placeholder code in your own source.
  4. Wrap the offending plugin call in try/catch if the failure is expected and can be handled gracefully.

Example fix

// before
$.error('msg'); // placeholder

// after
throw new Error('Expected a DOM element, got: ' + typeof el);
Defensive patterns

Strategy: try-catch

Validate before calling

null

Type guard

null

Try / catch

try {
  riskyPluginCall(el);
} catch (e) {
  // jQuery.error throws plain Error; inspect the stack for the real $.error() caller
  console.error('jQuery-level failure:', e.message, e.stack);
}

Prevention

When it happens

Trigger: Calling $.error('msg') directly in your code; plugin or jQuery internal code hitting an invalid condition and calling jQuery.error with a hard-coded or unformatted message (e.g. data storage on unsupported objects, invalid arguments to animation or cssHooks).

Common situations: Copy-pasted sample code where the placeholder string was never replaced; a plugin passing its message template unformatted; debugging session where the real call site is above this line in the stack trace.

Understand the failure class

Background: "This is a bug, please report it": internal invariant violations, unreachable panics, and SNH errors explained — this error's family across 47 libraries.

Related errors


AI-assisted analysis of OrchardCMS/OrchardCore@4306c0717f (2026-09-13). Data as JSON: /api/errors/ab25aa11862f33e0. Report an issue: GitHub.

Appendix: source

Thrown at src/OrchardCore.Modules/OrchardCore.Resources/wwwroot/Vendor/jquery-3.6.0/jquery.slim.js:338

				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isPlainObject: function( obj ) {
		var proto, Ctor;

		// Detect obvious negatives
		// Use toString instead of jQuery.type to catch host objects
		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
			return false;
		}

		proto = getProto( obj );

		// Objects with no prototype (e.g., `Object.create( null )`) are plain
		if ( !proto ) {
			return true;

View on GitHub (pinned to 4306c0717f)