线程“主”中的异常java.lang.NoSuchMethodError：com.fasterxml.jackson.module.scala.experimental.ScalaObjectMapper。$ init $（Lcom / fasterxml / jackson / module / scala / experimental / ScalaObjectMapper;）V < strong>试图在Spark中将df作为增量表写入时。
spark 2.4.4，scala 2.12
spark-shell --packages io.delta:delta-core_2.12:0.5.0
val dF=spark.read.load("path")
dF.toDF.write.format("delta").mode("overwrite").partitionBy("date","topic","partition","key").save("path")
错误：
java.lang.NoSuchMethodError: com.fasterxml.jackson.module.scala.experimental.ScalaObjectMapper.$init$(Lcom/fasterxml/jackson/module/scala/experimental/ScalaObjectMapper;)V
at org.apache.spark.sql.delta.util.JsonUtils$$anon$1.<init>(JsonUtils.scala:27)
at org.apache.spark.sql.delta.util.JsonUtils$.<init>(JsonUtils.scala:27)
at org.apache.spark.sql.delta.util.JsonUtils$.<clinit>(JsonUtils.scala)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaEvent(DeltaLogging.scala:62)
at org.apache.spark.sql.delta.metering.DeltaLogging.recordDeltaEvent$(DeltaLogging.scala:56)
at org.apache.spark.sql.delta.DeltaOptions$.recordDeltaEvent(DeltaOptions.scala:133)
at org.apache.spark.sql.delta.DeltaOptions$.verifyOptions(DeltaOptions.scala:176)
at org.apache.spark.sql.delta.DeltaOptions.<init>(DeltaOptions.scala:128)
at org.apache.spark.sql.delta.DeltaOptions.<init>(DeltaOptions.scala:130)
at org.apache.spark.sql.delta.sources.DeltaDataSource.createRelation(DeltaDataSource.scala:130)
at org.apache.spark.sql.execution.datasources.SaveIntoDataSourceCommand.run(SaveIntoDataSourceCommand.scala:46)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68)
at org.apache.spark.sql.execution.command.ExecutedCommandExec.doExecute(commands.scala:86)
at org.apache.spark.sql.execution.SparkPlan.$anonfun$execute$1(SparkPlan.scala:131)
at org.apache.spark.sql.execution.SparkPlan.$anonfun$executeQuery$1(SparkPlan.scala:155)
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at org.apache.spark.sql.execution.SparkPlan.executeQuery(SparkPlan.scala:152)
at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:127)
at org.apache.spark.sql.execution.QueryExecution.toRdd$lzycompute(QueryExecution.scala:80)
at org.apache.spark.sql.execution.QueryExecution.toRdd(QueryExecution.scala:80)
at org.apache.spark.sql.DataFrameWriter.$anonfun$runCommand$1(DataFrameWriter.scala:676)
at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withNewExecutionId$1(SQLExecution.scala:78)
at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:125)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:73)
at org.apache.spark.sql.DataFrameWriter.runCommand(DataFrameWriter.scala:676)
at org.apache.spark.sql.DataFrameWriter.saveToV1Source(DataFrameWriter.scala:290)
at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:271)
at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:229)
... 51 elided
类路径在罐子下面有这些
：com.fasterxml.jackson.core：jackson-databind：2.10.1，com.fasterxml.jackson.core：jackson-core：2.10.1，org.codehaus.jackson：jackson-core-asl：1.9.13 ，org.codehaus.jackson：jackson-mapper-asl：1.9.13，com.fasterxml.jackson.core：jackson-annotations：2.10.1，com.fasterxml.jackson.dataformat：jackson-dataformat-yaml：2.10.1 ，com.fasterxml.jackson.module：jackson-module-scala_2.12：2.10.1，com.fasterxml.jackson.module：jackson-module-jaxb注释：2.10.1，org.json4s：json4s-jackson_2.12 ：3.5.3，com.twitter：镶木地板-杰克逊：1.6.0，org.codehaus.jackson：jackson-jaxrs：1.9.13，org.codehaus.jackson：jackson-xc：1.9.13，com.fasterxml.jackson .module：jackson-module-paranamer：2.10.1，com.google.protobuf：protobuf-java：3.11.1，org.apache.htrace：htrace-core：3.1.0-incubating，commons-cli：commons-cli ：1.4