Hope you are doing well
You are getting this error because your oozie job directory is not present in the root directory of hadoop.So, kindly put this in hdfs and then proceed.Below is the syntax:
hadoop dfs -put /<path_to_oozie> /
hadoop dfs -put /home/edureka/Desktop/WordCountTest /
Also, make sure that you have an input file named data present in root of hdfs, because in the workflow.xml you will find that input path have been pointed towards /data
Hope this resolves your query
In case of any further issue,feel free to revert.