flutter build iosの際に'Flutter/Flutter.h' file not foundが出まくって、解決しない

とか、色々試したけど、全部ダメでした...

結論

https://zenn.dev/nrikiji/articles/f54c428f881997
で、Google-Servise.plistを開発用と本番用に分けた時のスクリプトが原因でした

Runner.xcworkspaceをXcodeで開いて、
Targets -> Build phases

ダメな方のスクリプト

Runscript.js

if [ "${CONFIGURATION}" == "Debug" ]; then
cp -r "${PROJECT_DIR}/Runner/GoogleService-Info-dev.plist" "$BUILT_PRODUCTS_DIR/$PRODUCT_NAME.app/GoogleService-Info.plist"
elif [ "${CONFIGURATION}" == "Release" ]; then
cp -r "${PROJECT_DIR}/Runner/GoogleService-Info-prod.plist" "$BUILT_PRODUCTS_DIR/$PRODUCT_NAME.app/GoogleService-Info.plist"
fi

いい方のスクリプト

Runscript.js

if [ "${CONFIGURATION}" == "Debug" ]; then
cp -r "${PROJECT_DIR}/Runner/GoogleService-Info-dev.plist" "$BUILT_PRODUCTS_DIR/$PRODUCT_NAME.app/GoogleService-Info.plist"
elif [ "${CONFIGURATION}" == "Release" ]; then
cp -r "${PROJECT_DIR}/Runner/GoogleService-Info-prod.plist" "$BUILT_PRODUCTS_DIR/$PRODUCT_NAME.app/GoogleService-Info.plist"
fi
/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build

解決！！！！！！！！！！！！！！！！！！！！！