---
slug: "thisclassisnotkeyvaluecoding-compliantforkeyで僕もハマる"
title: "I also got stuck with \"this class is not key value coding-compliant for key\""
description: "iOS7 Xcode5"
url: "https://www.ytyng.com/en/blog/thisclassisnotkeyvaluecoding-compliantforkeyで僕もハマる"
publish_date: "2013-10-04T06:49:02Z"
created: "2013-10-04T06:49:02Z"
updated: "2026-02-27T10:38:07.885Z"
categories: ["iOS"]
keywords: ""
featured_image_url: "https://media.ytyng.com/resize/20230812/e0092dcdf4d74774ab61f39cd002d27c.png.webp?width=768"
has_video: false
has_music: false
video_urls: []
music_urls: []
lang: "en"
---

# I also got stuck with "this class is not key value coding-compliant for key"

iOS7 Xcode5

I encountered an error stating "this class is not key value coding-compliant for key" which I couldn't resolve. Upon researching, I found that many others had also faced this issue.

The error was due to a lingering reference to an old Outlet in the storyboard, but I couldn't find the corresponding line even after using grep, which left me puzzled.

Since the error only occurred in the Japanese environment of the localized app, I unchecked and deleted the Japanese resource in Interface Builder, then checked it again, and the issue was resolved.