Hi, this is how I solved the "unable to run" problem. I almost met all the problems mentioned in this dialog.
1) in matlab command window, cd C:/whereYourProjectRootFolderIs, thereafter 80211a_lib can be found. Simulink is unlike matlab, running a modle does not change the present working directory to the current one.
2) run 80211n.mdl, it asks for XXXXX2 models, for example "commdigbbndam2", change it to XXXXX3. change all the similar problem you met in the same way. Some are in 80211n.mdl, one is in 80211a_lib.mdl
3) in command window, type command slupdate('80211n',0). The last one would solve your "this and that cannot be found or cannot be initialized" problem.