Firestore 递归删除函数不删除嵌套子集合？

// parentCol/uid/childCol_1/child_Doc1
// parentCol/uid/childCol_1/child_Doc1/child_Col2/child_Doc2

 const deleteDocumentAndCollections = async (path: string): Promise<void> => {
      try {
        console.log('deletePath:====>', path);
        // Get a reference to the initial document
        const documentRef = firestore.doc(path);

        // List all subcollections under the document to delete
        const subcollections = await documentRef.listCollections();

        console.log('Subcollections:====>', subcollections);

        // Error deleting document and subcollections: Error: Value for argument "documentPath" must point to a document,
        // but was parentCol/uid/childCol_1/
        // Your path does not contain an even number of components.

        // Recursively process and delete each subcollection
        for (const subcollection of subcollections) {
          try {
            // Call the function recursively to delete the subcollection recursively
            await deleteDocumentAndCollections(subcollection.path);
          } catch (error) {
            console.error('Error processing subcollection:', error);
          }
        }

        // Now, delete the document itself
        console.log('Deleting document:', documentRef.path);
        await documentRef.delete();
        console.log('Successfully deleted document:', documentRef.path);
      } catch (error) {
        console.error('Error deleting document and subcollections:', error);
      }
    };