View Full Version : Using epubcheck .jar with Java

05-27-2011, 03:47 PM
I'm having issues getting the epubcheck-1.2.jar + JAVA combination to work correctly. I've gone through as much troubleshooting as I can figure out and I'm still getting the same errors.
This is what I'm doing to run the check and the subsequent errors.

This is the setting I have currently to *attempt* to correctly assign java to my PATH in the environment variables.

And, yes, I have tried using the jre6\bin line but with no success. Am I writing my path line incorrectly? Do I have it assigned to the wrong folder/file? I'm not a programmer and I'm trying to understand Java enough to run this checker locally since I develop a high volume of books. Any help is appreciated!

----Erin Campbell
----eBook Developer
----TIPS Technical Publishing, Inc.

05-27-2011, 05:30 PM
Since this has nothing to do with eBook reading and is about ePub generation I am moving this thread to the ePub forum where the experts are.

05-27-2011, 07:14 PM
Thank you, I wasn't quite sure where to post.

05-27-2011, 08:06 PM
As an experiment I downloaded and installed the same version into C:\Tools\ePubCheck.

Executing it as

D:\Downloads>java -jar c:\tools\epubcheck\epubcheck-1.2.jar "d:\Downloads\The_Land_sample.epub"
Epubcheck Version 1.2

ERROR: d:\Downloads\The_Land_sample.epub/OPS/content.opf(12): date value '2011/05/01' is not valid. The date must be in the form YYYY, YYYY-MM or YYYY-MM-DD 21 (e.g., "1993", "1993-05", or "1993-05-01"). See

Check finished with warnings or errors!

However.... you do know that there was also a lib directory present that contains some additional classes. When I renamed that directory I got the exact same error as you did.

Double check that you have the jar file on your desktop AND a lib folder present there as well that should contain jing.jar and saxon.jar.

06-06-2011, 03:32 PM
Thank you, This was VERY helpful. What all of the "how-to" threads neglect to mention is that when you go to you need to download the SOURCE *and* BINARY .zip files.

Most, if not all, only instruct to "download" which, well, was not terribly elaborate enough of a, ahem, command. I hope others find this thread helpful!

06-06-2011, 04:24 PM
Of course you can also use FlightCrew, which blows epubcheck out of the water...

06-12-2011, 11:57 AM
Use FlightCrew and once FlightCrew says it's all OK, run it through ePubCheck and it should also say all is OK.