asciidoctor generator errors

[i5okie]

When openeing epub it opens, but shows error on page 2:
“This page contains the following errors:
error on line 13105 at column 23: Opening and ending tag mismatch: code line 0 and p
Below is a rendering of the page up to the first error.”

Excerpt From: Asciidoctor. “Untitled.” iBooks.

In console: (also shows these same issues when generating PDF)
Creating epub book
asciidoctor: WARNING: ch02/ch02.ad: line 41: section title out of sequence: expected level 2, got level 4
asciidoctor: WARNING: ch03/ch03.ad: line 193: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch03/ch03.ad: line 227: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1075: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1144: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1306: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1355: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1588: section title out of sequence: expected level 3, got level 4
asciidoctor: WARNING: ch04/ch04.ad: line 1779: section title out of sequence: expected level 3, got level 4
Wrote EPUB3 to /Users/Ivan/GitHub/rails_4_in_action/build/epub/book-highlights.epub
epub book created in /Users/Ivan/GitHub/rails_4_in_action/build/epub/book.epub

[sevenseacat]

The warnings about section titles are safe to ignore - the epub issue needs to be addressed though.