<h1 id="%E3%83%93%E3%83%AB%E3%83%89%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%AE%E7%99%BA%E7%94%9F" data-line="0" class="code-line">
<a class="header-anchor-link" href="#%E3%83%93%E3%83%AB%E3%83%89%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%AE%E7%99%BA%E7%94%9F" aria-hidden="true"></a> ビルドエラーの発生</h1>
<p data-line="2" class="code-line">今朝、<strong>iOS 18</strong>や<strong>Xcode 16</strong>がリリースされました。<br>
開発しているFlutterアプリが問題なく動作するか確認するため、Xcodeをアップデートした後、<code>flutter build ios</code>を実行したところ、以下のエラーが発生しビルドに失敗しました 😱</p>
<div class="code-block-container"><pre><code class="code-line" data-line="5">Lexical or Preprocessor Issue (Xcode): Include of non-modular header inside framework module 'firebase_messaging.FLTFirebaseMessagingPlugin'
</code></pre></div><h1 id="%E8%AA%BF%E6%9F%BB" data-line="10" class="code-line">
<a class="header-anchor-link" href="#%E8%AA%BF%E6%9F%BB" aria-hidden="true"></a> 調査</h1>
<p data-line="12" class="code-line">調べてみると、Issueがいくつか上がっていました。<br style="display:none">
<span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__34f2181676b9" src="https://embed.zenn.studio/card#zenn-embedded__34f2181676b9" data-content="https%3A%2F%2Fgithub.com%2Ffirebase%2Fflutterfire%2Fissues%2F12962" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://github.com/firebase/flutterfire/issues/12962" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://github.com/firebase/flutterfire/issues/12962</a><br style="display:none">
<span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__069ab11fa05d3" src="https://embed.zenn.studio/card#zenn-embedded__069ab11fa05d3" data-content="https%3A%2F%2Fgithub.com%2Ffirebase%2Fflutterfire%2Fissues%2F12993" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://github.com/firebase/flutterfire/issues/12993" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://github.com/firebase/flutterfire/issues/12993</a></p>
<p data-line="16" class="code-line">Issueには、Xcode上で以下の設定を<strong>YES</strong>にすることで解消されるとありましたが、自分の環境ではそもそも、その項目が見つかりませんでした。</p>
<div class="code-block-container"><pre><code class="code-line" data-line="18">Runner &gt; Build Settings &gt; Apple Clang - Language - Modules &gt; Allow Non-modular includes in Framework Modules
</code></pre></div><h1 id="%E7%B5%90%E8%AB%96" data-line="23" class="code-line">
<a class="header-anchor-link" href="#%E7%B5%90%E8%AB%96" aria-hidden="true"></a> 結論</h1>
<h3 id="2024%2F09%2F20-%E8%BF%BD%E8%A8%98%EF%BC%9A" data-line="25" class="code-line">
<a class="header-anchor-link" href="#2024%2F09%2F20-%E8%BF%BD%E8%A8%98%EF%BC%9A" aria-hidden="true"></a> 2024/09/20 追記：</h3>
<p data-line="27" class="code-line"><a href="#comment-3769926d7bb8d0">torutoさんからコメント</a>をいただきました！<br>
Xcode上では、Build Settingsのフィルターを"Basic"から"All"に変更しないと表示されないようです！<br>
手元でも試してみたところ表示されるようになりました！ありがとうございます！🙏</p>
<p data-line="31" class="code-line"><img src="https://res.cloudinary.com/zenn/image/fetch/s--dgmkhp93--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_1200/https://storage.googleapis.com/zenn-user-upload/deployed-images/7d04e714f6440a0bbca1817a.png%3Fsha%3D1572f5c90fefc84c78aabcfe5c0903841b2bf280" loading="lazy" class="md-img"></p>
<p data-line="33" class="code-line">↓ これまでのやり方も一応残しておきます！</p>
<hr data-line="35" class="code-line">
<p data-line="37" class="code-line">以下のコメントが参考になりました！<br style="display:none">
<span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__b632db08b4d66" src="https://embed.zenn.studio/card#zenn-embedded__b632db08b4d66" data-content="https%3A%2F%2Fgithub.com%2Ffirebase%2Fflutterfire%2Fissues%2F12993%23issuecomment-2244586519" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://github.com/firebase/flutterfire/issues/12993#issuecomment-2244586519" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://github.com/firebase/flutterfire/issues/12993#issuecomment-2244586519</a></p>
<p data-line="40" class="code-line"><code>ios/Runner.xcodeproj/project.pbxproj</code>をエディタで開き以下のように編集したところ、無事にビルドできるようになりました！🎉</p>
<div class="code-block-container"><pre class="diff-highlight "><code class="diff-highlight  code-line" data-line="41">…
/* Begin XCBuildConfiguration section */
		7AF8C0E6B9D2531R4L9M6K2P /* Profile */ = {
			isa = XCBuildConfiguration;
			buildSettings = {
				ALWAYS_SEARCH_USER_PATHS = NO;
				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
<span class="token inserted-sign inserted"><span class="token prefix inserted">+</span>				CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES = YES;
</span>				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
…
			};
		};
…
		X3Y9Z1Q8W7T5V6U2N4J6H8G /* Debug */ = {
			isa = XCBuildConfiguration;
			buildSettings = {
				ALWAYS_SEARCH_USER_PATHS = NO;
				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
<span class="token inserted-sign inserted"><span class="token prefix inserted">+</span>				CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES = YES;
</span>				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
…
			};
		};
…
		PQRS5678LMNO1234ABCD9012 /* Release */ = {
			isa = XCBuildConfiguration;
			buildSettings = {
				ALWAYS_SEARCH_USER_PATHS = NO;
				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
<span class="token inserted-sign inserted"><span class="token prefix inserted">+</span>				CLANG_ALLOW_NON_MODULAR_INCLUDES_IN_FRAMEWORK_MODULES = YES;
</span>				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
…
			};
<span class="token unchanged"><span class="token prefix unchanged"> </span>       };
</span>…
</code></pre></div>

Flutterビルド時のInclude of non-modular headerエラーへの対応方法

toruto

Masaharu Hori

<p data-line="0" class="code-line"><span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__86a5fd93a0492" src="https://embed.zenn.studio/card#zenn-embedded__86a5fd93a0492" data-content="https%3A%2F%2Fgithub.com%2FFlutterFlow%2Fflutterflow-issues%2Fissues%2F3834%23issuecomment-2360220544" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://github.com/FlutterFlow/flutterflow-issues/issues/3834#issuecomment-2360220544" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://github.com/FlutterFlow/flutterflow-issues/issues/3834#issuecomment-2360220544</a><br style="display:none">
Build Settingsのフィルターを"Basic"から"All"にしないと、GUI上で表示されないようです。</p>


<p data-line="0" class="code-line">ありがとうございます！<br>
手元でも"All"にしたら表示されました！🥳</p>
<p data-line="3" class="code-line">記事に<a href="https://zenn.dev/ispec_inc/articles/flutter-non-modular-header-error-fix#2024%2F09%2F20-%E8%BF%BD%E8%A8%98%EF%BC%9A" target="_blank">追記</a>させていただきました！</p>


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