Xcode 26 build fails with “Could not locate icontool” when using .icon file — how to fix?

Hi there,

I am new to Xcode26 and dragged my AppIcon.icon (created with Icon Composer) into the project. Then build failed with "Could not locate icontool".

Could anyone point me to the cleanest way to solve this? Any help would be appreciated, thanks!

CompileAssetCatalogVariant thinned /Users/jaffron/Library/Developer/Xcode/DerivedData/KuuDraft-dsmpyalldiyuusdldnjihwrtzmab/Build/Intermediates.noindex/ArchiveIntermediates/KuuDraft/InstallationBuildProductsLocation/Applications/KuuDraft.app /Users/jaffron/Documents/augment-projects/WalletPin/KuuDraft/AppIcon.icon /Users/jaffron/Documents/augment-projects/WalletPin/KuuDraft/Assets.xcassets (in target 'KuuDraft' from project 'KuuDraft')
    cd /Users/jaffron/Documents/augment-projects/WalletPin
    /Applications/Xcode.app/Contents/Developer/usr/bin/actool /Users/jaffron/Documents/augment-projects/WalletPin/KuuDraft/AppIcon.icon /Users/jaffron/Documents/augment-projects/WalletPin/KuuDraft/Assets.xcassets --compile /Users/jaffron/Library/Developer/Xcode/DerivedData/KuuDraft-dsmpyalldiyuusdldnjihwrtzmab/Build/Intermediates.noindex/ArchiveIntermediates/KuuDraft/IntermediateBuildFilesPath/KuuDraft.build/Release-iphoneos/KuuDraft.build/assetcatalog_output/thinned --output-format human-readable-text --notices --warnings --export-dependency-info /Users/jaffron/Library/Developer/Xcode/DerivedData/KuuDraft-dsmpyalldiyuusdldnjihwrtzmab/Build/Intermediates.noindex/ArchiveIntermediates/KuuDraft/IntermediateBuildFilesPath/KuuDraft.build/Release-iphoneos/KuuDraft.build/assetcatalog_dependencies_thinned --output-partial-info-plist /Users/jaffron/Library/Developer/Xcode/DerivedData/KuuDraft-dsmpyalldiyuusdldnjihwrtzmab/Build/Intermediates.noindex/ArchiveIntermediates/KuuDraft/IntermediateBuildFilesPath/KuuDraft.build/Release-iphoneos/KuuDraft.build/assetcatalog_generated_info.plist_thinned --app-icon AppIcon --include-all-app-icons --compress-pngs --enable-on-demand-resources YES --development-region en --target-device iphone --minimum-deployment-target 16.0 --platform iphoneos

error: unable to open dependencies file (/Users/jaffron/Library/Developer/Xcode/DerivedData/KuuDraft-dsmpyalldiyuusdldnjihwrtzmab/Build/Intermediates.noindex/ArchiveIntermediates/KuuDraft/IntermediateBuildFilesPath/KuuDraft.build/Release-iphoneos/KuuDraft.build/assetcatalog_dependencies_thinned) (in target 'KuuDraft' from project 'KuuDraft')
/* com.apple.actool.notices */
warning: Could not locate icontool.

Did you find a solution to this? I get the same thing but with Xcode Cloud

Xcode 26 build fails with “Could not locate icontool” when using .icon file — how to fix?
 
 
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