Generation Error

So I'm having an issue with the FoundationModels framework but idk if this is just my feeling or not, the issue comes up after I updated my Mac into 26.6

the code was very simple actually: #Playground { let model = SystemLanguageModel.default let session = LanguageModelSession(model: model) print(model.availability)

var query = "How to hide button"

Task {
    do {
        let response = try await session.respond(to: query)
        print(response.content)
    } catch {
        print("\(error)")
    }
}

}

the code works before I updated the version, but then after I updated the version it says: Error Domain=FoundationModels.LanguageModelSession.GenerationError Code=-1 "The operation couldn’t be completed. (FoundationModels.LanguageModelError error -1.)" UserInfo={NSMultipleUnderlyingErrorsKey=( "Error Domain=FoundationModels.LanguageModelError Code=-1 "(null)" UserInfo={NSMultipleUnderlyingErrorsKey=(\n "Error Domain=ModelManagerServices.ModelManagerError Code=1026 \"(null)\" UserInfo={NSMultipleUnderlyingErrorsKey=(\n)}"\n)}" ), NSLocalizedDescription=The operation couldn’t be completed. (FoundationModels.LanguageModelError error -1.)}

this is runned in Xcode 26.6, additional information I have also coder 27 beta 4 installed in my Mac, is this problem occurring because the Xcode 26.6 and Xcode 27 beta 4?? can u guys help me