How to sign an iOS Framework

No matter what I do when trying to build my iOS Framework, I get this error: "CodeSign error: code signing is required for product type 'Framework' in SDK 'iOS 9.3'" The only "solution" I found through searching was to ensure the framework's project's "Team" is set to None. That apparently solved the problem for some people, but I still get the same error. Since that solution was for SDK 8.x I'm wondering if there's something new in SDK 9.x that no longer allows creation of unsigned frameworks? If I sign it with my developer wildcard credentials, the consuming app is unable to upload to the app store because of a distribution certificate incompatibility. So is an unsigned ios Framework impossible...?