Quote:
Originally Posted by MikeT!
I'll try epubcheck with jdk1.7.0_79 and jre1.8.0_45 but everytime i've Error of class [...] Do you know why? (with the validator online this epub doesn't have error)
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Most likely your Java version is outdated or you didn't unzip the epubcheck archive correctly. (The folder that you extracted epubcheckx.xxx.jar to also needs to contain a lib folder with 8 other jar files.)
What version number is displayed if you enter the following command in a terminal/command prompt window?
If the version number isn't 1.5.0_xx (or higher) epubcheck won't run. (You can download the latest Java version from
Oracle.)
If you have a current Java version, download
pagina EPUB-Checker. It uses the same libraries as epubcheck but comes with a GUI.