将RDD转换为数据框

如何解决将RDD转换为数据框

我正在尝试将RDD转换为数据帧，但始终收到不匹配的输入错误。我需要更改什么？

 from pyspark.sql.functions import col
 from pyspark.sql import Row 
 from pyspark.sql.types import * 
 from pyspark.sql.functions import desc 
 from pyspark.sql.functions import SparkContext
 Text = "/content/birds.txt"
 Words = sc.textFile(Text).flatMap(lambda line: line.split(" ")).map(lambda word: (word,1)).reduceByKey(lambda x,y: x + y)
 print(Words)

  # Convert word-count RDD to dataframe with 2 columns ["Name","Number"]
  
  rwdf = words.toDF("Name","Number")
  rwdf.show(5)