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मਖ਼ͷରͱͳΔ)FBEFSϑΝΠϧͷΈΛؚΜͩ5BSHFUΛ࡞Ζ͏
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• [warning]: Source files for target Bar should be located under
'Sources/Bar', or a custom sources path can be set with the
'path' property in Package.swift
• [error]: target 'Bar' referenced in product 'Bar' is empty