Its an onboarding screen with some body text

PageViewModel(
      title: "",
        body: "Thousands of\ndoctors & experts to \nhelp your health!",
        footer: ElevatedButton(
          onPressed: () {},
          child: const Text("Next"),
        ),
        image: Center(child: Image.asset('assets/onboard1.png')),
        decoration: const PageDecoration(
            bodyTextStyle: TextStyle(
          color: Color(0xFF06B4A0),
          fontSize: 40,
          fontFamily: 'Urbanist',
          fontWeight: FontWeight.w700,
          height: 0.03,
        ))),

我已经尝试将正文字符串添加到文本小部件中，但它不允许，并给了我一个“只需要一个字符串？””错误。