error log

Exception in thread "main" kotlin.NotImplementedError: An operation is not implemented.
	at com.soywiz.korim.format.ImageFormat.readImage(ImageFormat.kt:14)
	at com.soywiz.korim.format.ImageFormat.read(ImageFormat.kt:27)
	at com.soywiz.korim.format.ImageFormat.decode(ImageFormat.kt:34)
	at com.talestra.criminalgirls.CriminalGirlsKt.encodeTest(CriminalGirls.kt:30)
	at com.talestra.criminalgirls.CriminalGirlsKt$main$1.doResume(CriminalGirls.kt:18)
	at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:54)
	at kotlin.coroutines.experimental.CoroutinesKt.startCoroutine(CoroutinesLibrary.kt:35)
	at com.soywiz.korio.coroutine.CoroutineKt.korioStartCoroutine(coroutine.kt:49)
	at com.soywiz.korio.async.AsyncKt.sync(async.kt:149)
	at com.soywiz.korio.async.AsyncKt.syncTest(async.kt:141)
	at com.talestra.criminalgirls.CriminalGirlsKt.main(CriminalGirls.kt:17)