I am creating a simple Cocoa Objective-C project to experiment with CEF (Chromium Embedded Framework). I copied the file "Chromium Embedded Framework.framework" into my project, adding it as an embedded binary, for example:

Since then, my compilation has not worked while signing the code with this error:
CodeSign /Users/pupeno/Library/Developer/Xcode/DerivedData/cefobjc-bxtruyemnyagwwgdejtzuxngovsr/Build/Products/Debug/cefobjc.app/Contents/Frameworks/Chromium\ Embedded\ Framework.framework/Versions/A cd /Users/pupeno/Projects/macninja-demos/cefobjc export CODESIGN_ALLOCATE=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/codesign_allocate Signing Identity: "-" /usr/bin/codesign --force --sign - --preserve-metadata=identifier,entitlements,resource-rules /Users/pupeno/Library/Developer/Xcode/DerivedData/cefobjc-bxtruyemnyagwwgdejtzuxngovsr/Build/Products/Debug/cefobjc.app/Contents/Frameworks/Chromium\ Embedded\ Framework.framework/Versions/A Warning: usage of --preserve-metadata with option "resource-rules" (deprecated in Mac OS X >= 10.10)! /Users/pupeno/Library/Developer/Xcode/DerivedData/cefobjc-bxtruyemnyagwwgdejtzuxngovsr/Build/Products/Debug/cefobjc.app/Contents/Frameworks/Chromium Embedded Framework.framework/Versions/A: No such file or directory Command /usr/bin/codesign failed with exit code 1

Any ideas why this is happening or how to fix it?
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