LLVM GCC 4.2 Error(s) after upgrading XCode 4.0?

Chris, I don't use MGTwitterXMLParser but the first error message in your question suggest the compiler is expecting the interface declaration of MGTwitterXMLParser class to have a parent. Without that, the compiler will treat MGTwitterXMLParser as a root class like NSObject.

Chris, I don't use MGTwitterXMLParser but the first error message in your question suggest the compiler is expecting the interface declaration of MGTwitterXMLParser class to have a parent. Without that, the compiler will treat MGTwitterXMLParser as a root class like NSObject. Does MGTwitterXMLParser.

H contain something that looks like @interface MGTwitterXMLParser:NSObject The second error message in your question could be linked to the first as the compiler isn't able to traverse the inheritance tree of MGTwitterXMLParser to locate its the declaration of +(id)alloc.

Apparently the issue arose because iOS SDK 4.0 feels the need to add all sorts of entries to the Header Search Paths, Framework Search Paths and Library Search Paths in the Build Settings. I cleaned those fields out and things started working.

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