UnloadAsset can only be used on assets

Questions & Answers
1

i want to read one texture with sequence, my code is below:
///


/// Dispaly image with a sequence loop.
///
///
IEnumerator DisplayImage()
{

        int count = imagepaths.Length;
        while (n < count)
        {
            WWW imagetemp = new WWW("file://D:/Ebook/" + imagepaths[n]);
            yield return imagetemp;
            Texture tex = _image.renderer.material.mainTexture;
            _image.renderer.material.mainTexture = imagetemp.texture;
            n++;
            Resources.UnloadAsset(tex);
            yield return new WaitForSeconds(1f);
        }
    }

when display the third image, i receive an error : UnloadAsset can only be used on assets ? what can i do ?

2

Resources.UnloadAsset only works on assets in your UnityProject. When loading textures through the WWW class, you can unload them again by calling Destroy on the texture.

Example:

Destroy(tex);