/ pre_pred /中的AttributeError

Question

我已经安装了所有要求并成功运行了本地服务器，但是当我尝试运行此4th_umpire(The cricket match predictor using Random Forest algo项目的预测部分时，出现以下错误：-

在这里，我要提供错误图像中提到的代码的错误部分。

def _transform(self, X, handle_unknown='error'):
    X_list, n_samples, n_features = self._check_X(X)

    X_int = np.zeros((n_samples, n_features), dtype=np.int)
    X_mask = np.ones((n_samples, n_features), dtype=np.bool)

    if n_features != len(self.categories_):
        raise ValueError(
            "The number of features in X is different to the number of "
            "features of the fitted data. The fitted data had {} features "
            "and the X has {} features."
            .format(len(self.categories_,), n_features)
        )

异常行是如果n_features！= len（self.categories _）：，尽管我已经检查过OneHotEncoder部分，对我来说似乎还可以。