Could not find or load main class org.apache.hadoop.mapred.YarnChild问题

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我的Hadoop 版本是 3.3.6的，在yarn-site.xml中加入以下配制：

<property>
<name>yarn.application.classpath</name>
<value>
/software/hadoop-3.3.6/etc/hadoop,
/software/hadoop-3.3.6/share/hadoop/common/*,
/software/hadoop-3.3.6/share/hadoop/common/lib/*,
/software/hadoop-3.3.6/share/hadoop/hdfs/*,
/software/hadoop-3.3.6/share/hadoop/hdfs/lib/*,
/software/hadoop-3.3.6/share/hadoop/mapreduce/*,
/software/hadoop-3.3.6/share/hadoop/mapreduce/lib/*,
/software/hadoop-3.3.6/share/hadoop/yarn/*,
/software/hadoop-3.3.6/share/hadoop/yarn/lib/*
</value>
</property>