Issue with runnable jar file with Eclipse

Asked Dec 03 '17 at 16:05

Active Dec 03 '17 at 16:05

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(I see that this question was asked a couple of times a few years back, I tried the suggested methods but they aren't working for me).

I am on Ubuntu 16.04 LTS and Eclipse Oxygen (4.7.1a). Java version is 9.0.1

As an exercise, I just coded a very simple guessing game application (with GUI) from a very recent (2017) Java book from a well known publisher. The app runs smoothly from Eclipse.

Then I wanted to create a runnable JAR file, with file -> export -> java -> runnable JAR file. I then entered those apparently obvious launch configuration and export destination details, but when I clicked on finish it says "JAR creation failed" (details: No resources selected. JAR export finished with problems. Could not find main method for given launch configuration)

Any help and suggestions would be greatly appreciated, thanks.

asked Dec 03 '17 at 16:05

A. N. Other

Are you specifying the main class in META-INF file also the dependencies? Extract and have a look – Saran Dec 03 '17 at 17:07
Where is located the META-INF file in my project? From the export wizard I cannot do more than what I did. – A. N. Other Dec 03 '17 at 17:11
Extract the runnable jar and see – Saran Dec 03 '17 at 17:12
Runnable jar is not extracting, "JAR creation failed". – A. N. Other Dec 03 '17 at 17:13
During runnable jar creation there is a option to specify the META-INF folder from eclipse – Saran Dec 03 '17 at 17:13
There is no mention of META-INF folder in the extract wizard here – A. N. Other Dec 03 '17 at 17:15
You mean I try to export as JAR file? No runnable? – A. N. Other Dec 03 '17 at 17:17
https://stackoverflow.com/a/47280948/753468 – Saran Dec 03 '17 at 17:21
Have u tried this? – Saran Dec 03 '17 at 17:21
I tried a few of these but didn't work. I have no idea on what to do – A. N. Other Dec 03 '17 at 17:23
1. Try clean and build 2. Try downgrading jdk version – Saran Dec 03 '17 at 17:24
I tried everything but it doesn't work, I also created a manifest.mf file with the class info but I am reluctant to downgrade to jdk 8 just for this issue... thanks anyway. – A. N. Other Dec 03 '17 at 18:25

Issue with runnable jar file with Eclipse

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