Conversion error MOBI to EPUB

fyoung · 04-25-2011, 07:32 PM

I have been trying to convert a book to epub but keep getting this error....

calibre.ebooks.oeb.transforms.split.SplitError: Could not find reasonable point at which to split: Obama_s_Wars.html Sub-tree size: 571 KB

What does this mean and how can I work around it?
I have go into prefrences and under output increased the split files larger than .... I have increased this to 600 KB

Manichean · 04-26-2011, 06:05 AM

That means that Calibre can't find a point at which to perform the split into smaller files. It tries to do this at "natural" split points like chapter breaks and such, as far as I know.
Increasing that size may horribly break stuff on readers especially with ADE, like the Sony and Bookeen devices- they are not designed to load chunks larger than 260 kB into memory, so most often, they just hang. You may have to reset that setting to its standard.

As for how to solve that problem, I'm not sure. Does the conversion fail entirely or is this just printed as an error, but an ePub is produced anyway?

DoctorOhh · 04-26-2011, 07:46 AM

I previously was able to correct this following these instructions.

theducks · 04-26-2011, 11:56 AM

Quote:

Originally Posted by fyoung

I have been trying to convert a book to epub but keep getting this error....

calibre.ebooks.oeb.transforms.split.SplitError: Could not find reasonable point at which to split: Obama_s_Wars.html Sub-tree size: 571 KB

What does this mean and how can I work around it?
I have go into prefrences and under output increased the split files larger than .... I have increased this to 600 KB

I had a few that I did that (size increase) to do the initial conversion.

Now restore the setting to 260K
And Convert EPUB to EPUB. for some reason, It can Now find a place to (re) split

04-25-2011, 07:32 PM	#1
fyoung Member Posts: 18 Karma: 10 Join Date: Mar 2011 Device: kobo	Conversion error MOBI to EPUB I have been trying to convert a book to epub but keep getting this error.... calibre.ebooks.oeb.transforms.split.SplitError: Could not find reasonable point at which to split: Obama_s_Wars.html Sub-tree size: 571 KB What does this mean and how can I work around it? I have go into prefrences and under output increased the split files larger than .... I have increased this to 600 KB

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04-26-2011, 06:05 AM	#2
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	That means that Calibre can't find a point at which to perform the split into smaller files. It tries to do this at "natural" split points like chapter breaks and such, as far as I know. Increasing that size may horribly break stuff on readers especially with ADE, like the Sony and Bookeen devices- they are not designed to load chunks larger than 260 kB into memory, so most often, they just hang. You may have to reset that setting to its standard. As for how to solve that problem, I'm not sure. Does the conversion fail entirely or is this just printed as an error, but an ePub is produced anyway?

04-26-2011, 07:46 AM	#3
DoctorOhh US Navy, Retired Posts: 9,864 Karma: 13806776 Join Date: Feb 2009 Location: North Carolina Device: Icarus Illumina XL HD, Nexus 7	I previously was able to correct this following these instructions.

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