Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java

Leon Kamerlin
Leon Kamerlin
18,728 Points
Posted by Leon Kamerlin
Leon Kamerlin
18,728 Points

I can't run the app

When I run the app I got this error message:

Exception in thread "main" java.lang.IllegalArgumentException: Parameter 'url' must not be null! at org.apache.commons.csv.Assertions.notNull(Assertions.java:35) at org.apache.commons.csv.CSVParser.parse(CSVParser.java:202) at com.teamtreehouse.challenges.highscores.service.ScoreService.getParser(ScoreService.java:28) at com.teamtreehouse.challenges.highscores.service.ScoreService.getCSVStream(ScoreService.java:32) at com.teamtreehouse.challenges.highscores.service.ScoreService.getScoreStream(ScoreService.java:59) at com.teamtreehouse.challenges.highscores.service.ScoreService.getAllScores(ScoreService.java:65) at com.teamtreehouse.challenges.highscores.Main.main(Main.java:12) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

Dinu Comendant
Dinu Comendant
6,049 Points

I have the same problem Jennifer Nordell Steve Hunter