Can't run unit tests for KnowRob

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I'm trying to do so according to the documentation. For example:

rosrun rosprolog rosprolog-test comp_temporal

Warning: /home/al/catkin_ws/src/stacks/knowrob/knowrob_common/prolog/rdfs_computable.pl:546:
    Singleton variable in branch: OneOfList
ERROR: /home/al/catkin_ws/src/stacks/knowrob/comp_temporal/prolog/comp_temporal.plt:21:
    plunit:begin_tests/4: Undefined procedure: plunit:'$declare_module'/5
Warning: /home/al/catkin_ws/src/stacks/knowrob/comp_temporal/prolog/comp_temporal.plt:21:
    Goal (directive) failed: plunit:begin_tests(comp_temporal)
ERROR: /home/al/catkin_ws/src/stacks/knowrob/comp_temporal/prolog/comp_temporal.plt:107:
    PL-Unit: cannot close unit comp_temporal: no open unit
Warning: /home/al/catkin_ws/src/stacks/knowrob/comp_temporal/prolog/comp_temporal.plt:107:
    Goal (directive) failed: plunit_comp_temporal:end_tests(comp_temporal)
ERROR: Prolog initialisation failed:
ERROR: '<meta-call>'/1: Undefined procedure: plunit_comp_temporal:'unit test'/4