Eclipse Community Forums: Java Development Tools (JDT) » Launch configuration CommandLineProgram references non-existing project Calculator.

Home » Language IDEs » Java Development Tools (JDT) » Launch configuration CommandLineProgram references non-existing project Calculator.(Launch configuration CommandLineProgram references non-existing project Calculator.)

Show: Today's Messages :: Show Polls :: Message Navigator

Launch configuration CommandLineProgram references non-existing project Calculator. [message #1715348]

Sun, 22 November 2015 15:59

lucas ju san jeon

Messages: 3
Registered: November 2015

Junior Member

Hello java community I'm having some problems to run a simple HelloWorld program to test if my eclipse is working I need help please ... thanks Confused

Launch configuration CommandLineProgram references non-existing project Calculator.

Attachment: Untitled-1.jpg
(Size: 371.81KB, Downloaded 556 times)

Report message to a moderator

Re: Launch configuration CommandLineProgram references non-existing project Calculator. [message #1715473 is a reply to message #1715348]

Mon, 23 November 2015 22:03

Stephan Herrmann

Messages: 1853
Registered: July 2009

Senior Member

If we read the error dialog, it tells us that you tried to invoke a launch configuration called "CommandLineProgram" which refers to a project called "Calculator", which however does not exist in your workspace. Isn't that what you see, too?
Question: how did you create that bogus launch configuration?

Report message to a moderator

Re: Launch configuration CommandLineProgram references non-existing project Calculator. [message #1715486 is a reply to message #1715473]

Tue, 24 November 2015 02:29

lucas ju san jeon

Messages: 3
Registered: November 2015

Junior Member

Hi Stephan , I have no idea why it started to show this error message, even though I don't have any project Calculator ... It's been 3 weeks since I last wrote something by eclipse and then when I tried to write a simple HelloWorld program this error kept showing. Confused

Do you have any clue for this solution? thanks for replying.

Report message to a moderator

Re: Launch configuration CommandLineProgram references non-existing project Calculator. [message #1715537 is a reply to message #1715486]

Tue, 24 November 2015 10:12

Stephan Herrmann

Messages: 1853
Registered: July 2009

Senior Member

Invoke from the main menu "Run > Run Configurations ...".
You will find the launch configuration called CommandLineProgram. Either fix the errors here (insert the correct project & main class etc.), or perhaps easier: delete that launch configuration and give it a fresh start by "Run As > Java Application" with your main class selected.

Also remember that Eclipse does have online help (in the IDE and on the web) Smile