After updating to Xcode5, builds that previously worked started failing.

Error Message 1

Apple Match-O Linker Error
Linker command failed with exit code 1 (use -v to see invocation)

Error Message 2

ld: library not found for -lPods
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Library not found for -lPods
Linker command failed with exit code 1 (use -v to see invocation)

Concerning Warning Message

Pods was rejected as an implicit dependency for 'libPods.a' because its architectures 'armv7 armv7s' didn't contain all required architectures 'armv7 armv7s arm64'

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Resolved by Updating CocoaPods

Update cocoapods.

gem update cocoapods

After updating, run pod install again.

pod install

When I built again, the build completed successfully.

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Reference Information

・Objective-C - CocoapodsとXcode5の組み合わせでエラー出た+解決した - Qiita [キータ]

That’s all from the Gemba.