R中的错误：'st_centroid'的适用方法没有应用于类“NULL”的对象

Edit ：我后来意识到错误发生在我的完整数据集中，而不是代码中 . 我很抱歉 . 这可能对其他人有用，也可能没用 .

我有一个tibble，有一个名为'geometry'的列，它是多边形（我正在使用sf空间包） . 我正在尝试向每个多边形的质心的tibble添加一列 . 但是，我收到一个错误：“mutate_impl（.data，dots）中的错误：评估错误：没有适用于”st_centroid“的方法应用于类”NULL“的对象 . ”我已经看过一些关于类似主题的其他帖子，但不太相似，我无法弄明白 . 如果我错过了什么，我道歉！

我是新手使用烟斗和tidyverse，所以也许出现了问题 . 任何帮助，将不胜感激！

以下是我的代码示例：

center1 = function(df){ centroid = st_centroid(df) }

table2 = x %>% mutate(center.1 =map(geometry, center1))

这是我的数据的一个非常小的样本（只有一行） - 代码中的变量 x （对不起长度！）：我有tidyverse，tibble，dplyr，purrr和sf加载 .

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