啟動
./spark-shell
出現問題
啟動 hadoop,
並創建，解決
hadoop fs -mkdir /directory
解決了
:14: error: not found: value spark import spark.implicits.
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Spark Shell啟動時遇到
:14: error: not found: value spark import spark.implicits._
:14: error: not found: value spark import spark.sql錯誤的解決辦法（圖文詳解）
無法導入 import spark.implicits._
error: not found: value sqlContext/import sqlContext.implicits._/error: not found: value sqlContext /import sqlContext.sql/Caused by: java.net.ConnectException: Connection refused
import spark.implicits._ 報紅，無法導入
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error: not found: value sc
Error- Overloaded method value createDirectStream in error Spark Streaming打包報錯
sbt打包error(sbt.librarymanagement.ResolveException: unresolved dependency: org.apache.spark#spark-streaming;2.3.1: not found)
Apache Spark源碼走讀之14 -- Graphx實現剖析
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