报错No implicits found for parameter evidence$6: Encoder
记录一个在写spark项目的时候碰到的一个问题No implicits found for parameter evidence$6: Encoderide 这个问题的实质就是咱们须要对当下类型的变量进行map操做，可是此时出现的问题是不能进行map操做，本人的解决办法是，在相关的变量语句以前添加一行导入操做便能解决问题，导入语句为：spa import spark.implicits._ 这样操
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