The Fmod menu in Unity wouldn’t work for me in 2018.4, clicking “Edit Settings” gives this error in the console:
ExecuteMenuItem failed because there is no menu named ‘Window/Inspector’
(Unity changed Window/Inspector to Window/General/Inspector for 2018)
The fix is to update
/Assets/Plugins/FMOD/Settings.cs
around line 119
with
string inspectorMenuPath =
#if UNITY_2018_1_OR_NEWER
"Window/General/Inspector";
#else
"Window/Inspector";
#endif
EditorApplication.ExecuteMenuItem(inspectorMenuPath);
Hope that helps anyone else upgrading,