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Beginner trying to open first "Assignment" [message #1803128] Fri, 22 February 2019 21:12 Go to next message
Philip Stadulis is currently offline Philip StadulisFriend
Messages: 1
Registered: February 2019
Junior Member
Hey All,

Today's my first day learning Java. I've started taking an old Stanford Engineering Everywhere course (Standford SSE CS106A/172). I attempted to install the version of Eclipse found in their course documents (Release 3.2.1) but I was unable to install it. Instead I downloaded the most recent version straight from Then I downloaded their "Starter Code" found in Assignments.

I imported "Assignment 1" and now when I try to run the code I get an error:

Exception in thread "main" java.lang.NullPointerException
at acm.program.Program.main(
at stanford.karel.Karel.main(

I'm wondering if there could be compatibility issues with the code provided by the course and the version of Eclipse I'm using, and that this could be my problem? Or, is there a simple configuration setting I need to set?

Any help would be much appreciated!

Re: Beginner trying to open first "Assignment" [message #1803129 is a reply to message #1803128] Fri, 22 February 2019 21:53 Go to previous message
Nitin Dahyabhai is currently offline Nitin DahyabhaiFriend
Messages: 3439
Registered: July 2009
Senior Member

Not having the source in question, I'd suggest you set a Java Exception Breakpoint ( for NullPointerExceptions and figure out which part of the statement on line 917 is null when it's not expected to be.

Nitin Dahyabhai
Eclipse Web Tools Platform
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