WXR version number

Am trying to add the custom posts to my sydney theme, when i upload the sydney-settings.xml in wordpress 4.4.2 i get this error
Sorry, there has been an error.
This does not appear to be a WXR file, missing/invalid WXR version number

Hello there,

Could you confirm if you were trying to import that file through Dashboard > Types > Import/Export?

Regards,
Kharis

i was importing yes

the import property is under tools, not types in the new wordpess

Hello there,

Thank you for updating me.

The sydney-settings.xml file contains post types settings. It must be imported through the Dashboard > Types > Import/Export after the Types plugin installed and activated.

Regards,
Kharis

thanks for the update

one last question, my custom posts dont have the category option how do i go about it?

Hello there,

Please refer here https://athemes.com/forums/topic/categories-missing/#post-248498

Regards,
Kharis