Logs an import warning to the console.
Pass an asset as the second argument to link the warning to the asset in the editor.
See Also: Debug.LogWarning.
    // Compress all the imported audio files and
// report a warning when the importer sound is 2D.
class PreprocessAudioSettings extends AssetPostprocessor {
        function OnPreprocessAudio() {
            var importer : AudioImporter = assetImporter;
            importer.format  = AudioImporterFormat.Compressed;
            if(!importer.threeD)
                LogWarning(assetPath + " is a 2D sound");
        }
}