dpkg-shlibdeps: error: no dependency information found for

use:

override_dh_shlibdeps:
    dh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info

if your rule file hasn’t the dh_shlibdeps call in it. That’s usually the case if you’ve

%:
    dh $@

as only rule in it … in above you must use a tab and not spaces in front of the dh_shlibdeps