Redundant conformance of 'CGPoint' to protocol 'Decodable'

[agordeev]

I'm getting this error when trying to build the project for Test target:

The code is:

extension CGPoint: Decodable {
    /// Decodes CGPoint from JSON array. Returns CGPoint.zero if array.count < 2.
    ///
    /// - Parameter json: json element
    /// - Returns: CGPoint converted from json
    /// - Throws: error if type mismatch.
    public static func decode(_ json: Any) throws -> CGPoint {
        let array: [Double] = try cast(json)
        let point: CGPoint
        if array.count < 2 {
            print("Can't parse point from array: \(array)")
            point = CGPoint.zero
        } else {
            point = CGPoint(x: array[0], y: array[1])
        }
        return point
    }
}

Everything works fine with main target. Any ideas? Decodable is installed via CocoaPods, version 0.5.

podfile:

use_frameworks!

# ignore all warnings from all pods
inhibit_all_warnings!

def pods
    pod 'Masonry', '0.6.4'
    pod 'Decodable'
    pod 'RealmSwift'
end

target 'App' do
    platform :ios, '9.0'
    pods
end

target 'AppTests' do
    platform :ios, '9.0'
    pods
end

post_install do |installer|
    Dir.glob(installer.sandbox.target_support_files_root + "Pods-*/*.sh").each do |script|
        flag_name = File.basename(script, ".sh") + "-Installation-Flag"
        folder = "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
        file = File.join(folder, flag_name)
        content = File.read(script)
        content.gsub!(/set -e/, "set -e\nKG_FILE=\"#{file}\"\nif [ -f \"$KG_FILE\" ]; then exit 0; fi\nmkdir -p \"#{folder}\"\ntouch \"$KG_FILE\"")
        File.write(script, content)
    end
end

[jsonfellin]

I'm facing a similar issue. Did you solve this by chance?