AssetPostprocessor.LogError

function LogError (warning : String, context : Object = null) : void

Description

Logs an import error message to the console.

Pass an asset as the second argument to link the error to the asset in the editor.

See Also: Debug.LogError.

    class CustomImportSettings extends AssetPostprocessor {

function OnPreprocessTexture() {
var importer : TextureImporter = assetImporter;
if(!importer)
LogError("Texture doesnt exists");
}
}