How to control DOCTYPE declaration in RH2017?

Question

I'm having an issue where the DOCTYPE declaration in RoboHelp 2017 keeps reverting to this:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

When I change it to either of these, RH reverts it back:
<!DOCTYPE html> or <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
I'm asking because ever time I make a change in a topic and save it, I'm getting this exception error message which is quite annoying:

I can only assume it's related to the DOCTYPE declaration.

Any help would be greatly appreciated.

Peter Grainge · Answer

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> is what RoboHelp is designed to work with. I don't recall seeing this is a problem before but it's a very old version and out of support.

As to the error, have you tried deleting the CPD file and then reopening RoboHelp? That used to fix many issues. Backup first if in doubt.

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My site www.grainge.org includes many free Authoring and RoboHelp resources that may be of help.

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