ARC Issue: No known instance method for selector 'appendPartWithFileData:mimeType:name?

It’s a bit strange that the compiler considers this an “ARC issue�. IMHO the AFMultipartFormData protocol doesn’t contain a method called appendPartWithFileData:mimeType:name: . Take a look at the documentation, maybe the protocol was refactored and the method signature change a bit.

I’m not sure where does AFMultipartFormData come from, but a short search gave me these docs that suggest you might have success with appendPartWithFileData:name:fileName:mimeType: .

The signature in my AFHTTPClient. H looks like this.

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