ocaml-type-conv-debuginfo-3.0.5-7 is empty. If there's nothing to produce debuginfo from, the debuginfo subpackage should be explicitly disabled (it seemingly was before this update).
ocaml-type-conv-3.0.5-10.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/ocaml-type-conv-3.0.5-10.fc21
Package ocaml-type-conv-3.0.5-10.fc21, ocaml-sexplib-7.0.5-11.fc21, ocaml-bin-prot-2.0.9-10.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing ocaml-type-conv-3.0.5-10.fc21 ocaml-sexplib-7.0.5-11.fc21 ocaml-bin-prot-2.0.9-10.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-11724/ocaml-bin-prot-2.0.9-10.fc21,ocaml-sexplib-7.0.5-11.fc21,ocaml-type-conv-3.0.5-10.fc21 then log in and leave karma (feedback).
ocaml-type-conv-3.0.5-10.fc21, ocaml-sexplib-7.0.5-11.fc21, ocaml-bin-prot-2.0.9-10.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.