'Adobe Muse CC quit unexpectedly' is all I get when I try to open the app?

I am using Yosemite, i've un and reinstalled, updated AIR, quit, restarted....what else can I do?

I expect that somehow the permissions set for your Preferences folder are incorrect.
Please open the preferences folder. (Hold the Option key down while selecting the "Go" menu in the Finder and an additional "Library" item will appear in that menu. Select it. It will open a Finder window for your user Library folder (which is normally a hidden folder). Inside the Library folder you'll find a Preferences folder.)
In the Preferences folder you should see an "Adobe" folder. Is it there?
Inside the "Adobe" folder there should be an "Adobe Muse CC" folder. Is it there?
Inside the "Adobe Muse CC" folder there should be a "2014.2" folder. Is it there?
If at any point the folder is not there, attempt to create a new folder at that location. (The default name of "untitled folder" is fine.) Are you prompted to enter your password? You shouldn't be. Did any error or warning appear?

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