message	String or object to be converted to string representation for display.
context	Object to which the message applies.

A variant of Debug.Log that logs an error message to the console.

When you select the message in the console a connection to the context object will be drawn. This is very useful if you want know on which object an error occurs.

When the message is a string, rich text markup can be used to add emphasis. See the manual page about rich text for details of the different markup tags available.

	var memberVariable : Transform;
	if(memberVariable == null)
		Debug.LogError("memberVariable must be set to point to a Transform.", transform);

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    public Transform memberVariable;
    void Example() {
        if (memberVariable == null)
            Debug.LogError("memberVariable must be set to point to a Transform.", transform);
        
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	public memberVariable as Transform

	def Example() as void:
		if memberVariable == null:
			Debug.LogError('memberVariable must be set to point to a Transform.', transform)