We are trying to export articles from Journal A (using OJS 3.1.2.1 version) and import them to journal B (OJS 3.3.0.19)
We receive the following error for the imports
Validation errors: Element ‘{Error! Hyperlink reference not valid.’, attribute ‘language’: The attribute ‘language’ is not allowed. Element ‘{Error! Hyperlink reference not valid.’, attribute ‘date_published’: The attribute ‘date_published’ is not allowed. Element ‘{Error! Hyperlink reference not valid.’, attribute ‘section_ref’: The attribute ‘section_ref’ is not allowed. Element ‘{Error! Hyperlink reference not valid.’, attribute ‘seq’: The attribute ‘seq’ is not allowed. Element ‘{Error! Hyperlink reference not valid.’, attribute ‘access_status’
I set @mohd_arshad answer as the solution because he is right, but let me add that sometimes you can import/export between versions that are not exactly the same but close enough (ie: 3.2.0 to 3.2.1) but not as different as 3.1 to 3.3. I didn’t find a pattern, so the only way is trial and error.