未为类型“_MyAppState”定义方法“getApplicationDocumentsDirectory”

Question

所以我的代码的一部分是

 Future<void> _loadModel() async {
    final bytes =
        await rootBundle.load('assets/deepspeech-0.9.3-models.tflite');
    final directory = (await getApplicationDocumentsDirectory()).path;

而且我不断收到错误：

The method 'getApplicationDocumentsDirectory' isn't defined for the type '_MyAppState'.
Try correcting the name to the name of an existing method, or defining a method named 'getApplicationDocumentsDirectory'

我该怎么办？请帮帮我！

Answer 1

您必须通过在终端中运行 flutter pub add path_provider 来安装路径提供程序包。如果您已经安装了它。检查您是否将其导入到您的文件中。