Good Morning

I am new in this world. I am trying to use the pyspark mongoDb connetions for the first time. 

I am receveing am erro when i try to perform the follow intruction

 df01 = spark.read.format("com.mongodb.spark.sql.DefaultSource")\
.option("database","db_tweets")\
.option("collection", "back_tweets")\
.load()

The error message  starts with 

java.lang.NoClassDefFoundError: Could not initialize class com.mongodb.spark.config.ReadConfig$
at com.mongodb.spark.sql.DefaultSource.createRelation(DefaultSource.scala:67)

I've already tried every solution that i've found internet and i don't lnow ho to fix it.

I reaaly apreciate any help

Thanks in advance