I don't need help anymore. I've managed to fix the issue.

Milica Milivojević

What did you do to resolve this?  It's helpful to share :-)

Milica Milivojević

What did you do to resolve this?  It's helpful to share :-)

Hey Paul, I've actually tried what you suggested to someone who had a similar issue. I've unchecked validation for all xml files and then I was able to do the verification.

Excellent... thanks Milica Milivojević

I've had a similar issue a couple of times recently and wanted to apply the above solution (unchecking the validation for all xml files) but just don't find where to do so and I do promise I've searched for a really long time... Can you please share where to find this setting. Thanks in advance.

Francis Lambeets 

Under "Validation" on the XML filetypes. In the Filetype Settings.

Thanks Paul