You can turn on errors by selecting the "Show Errors and Warnings" option and clicking "Update Book" here:
https://leanpub.com/YOUR_BOOK/settings/generation_settings
...making sure to replace YOUR_BOOK with your book's unique web address.
You can turn on errors by selecting the "Show Errors and Warnings" option and clicking "Update Book" here:
https://leanpub.com/YOUR_BOOK/settings/generation_settings
...making sure to replace YOUR_BOOK with your book's unique web address.