Hi, Isn't it because you do not provide command-line arguments?
Best, tison. alaa <alaa.abut...@hotmail.com> 于2019年4月1日周一 下午2:33写道: > Hi, > > I am following the Taxi example provided on > "http://training.data-artisans.com/exercises/taxiData.html", however, I > got > the following error message when I run AreasTotalPerHour.java at my > Intellij > IDE. > > > < > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t1965/Screenshot_from_2019-04-01_08-18-03.png> > > > i just inset the path for csv file in line: > System.err.println("/home/alaa/Downloads/sorted_data.csv"); > > Should i change anything in utils package ?? > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ >