BCE0053: Property 'UnityEditor.Editor.preview' is read only.

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1

Hi,
I’ve been trying to fix the following compiler error,
and I’d be grateful for any advice on fixing it:

BCE0053: Property 'UnityEditor.Editor.preview' is read only.

here’s the code that the error leads to once I double-click on it

class CameraMotionBlurEditor extends Editor 
{	
	var serObj : SerializedObject;	
		
  var filterType : SerializedProperty;
  var preview_ : SerializedProperty;
  var previewScale : SerializedProperty;
  var movementScale : SerializedProperty;
  var rotationScale : SerializedProperty;
  var maxVelocity : SerializedProperty;
  var minVelocity : SerializedProperty;
  var maxNumSamples : SerializedProperty;
  var velocityScale : SerializedProperty;
  var velocityDownsample : SerializedProperty;
  var noiseTexture : SerializedProperty;
  var showVelocity : SerializedProperty;
  var showVelocityScale : SerializedProperty;
  var excludeLayers : SerializedProperty;
  //var dynamicLayers : SerializedProperty;

	function OnEnable () {
		serObj = new SerializedObject (target);
		
    filterType = serObj.FindProperty ("filterType");

    preview = serObj.FindProperty ("preview_");
    previewScale = serObj.FindProperty ("previewScale");

    movementScale = serObj.FindProperty ("movementScale");
    rotationScale = serObj.FindProperty ("rotationScale");

    maxVelocity = serObj.FindProperty ("maxVelocity");
    minVelocity = serObj.FindProperty ("minVelocity");

    maxNumSamples = serObj.FindProperty ("maxNumSamples");

    excludeLayers = serObj.FindProperty ("excludeLayers");
    //dynamicLayers = serObj.FindProperty ("dynamicLayers");

    velocityScale = serObj.FindProperty ("velocityScale");
    velocityDownsample = serObj.FindProperty ("velocityDownsample");

    noiseTexture = serObj.FindProperty ("noiseTexture");
	}

Thank you

2

You’ve got a variable named ‘preview_’, but you’re trying to assign something to ‘preview’, which is a non-accessible and readonly field of the Editor class that you’re inheriting from.