Whenever I open an EPUB, that I exported from InDesign CC 2014, in Adobe Digital Editions 4 I get this error message: "Errors opening this file were encountered."
It doesn't matter if I select fixed layout or reflowable. ADE2 use to work, but didn't support fixed layout.
I even tried exporting a blank document just to see and it still would not open. Any ideas?
I got the same Error for FXL Export from InDesign 2014.1/Windows 64.
I found an ugly workaround for testing your files in ADE:
Delete the lline <meta property="dcterms:modified ... > inside the file content.opf and ADE loads the FXL EPUB.
But beware: Now ist your EPUB file not valid anymore..