Not work PluginReference for CSPlugin

Code:

[PluginReference]
Plugin AspectRatio;

 

int ratio = (int)(Interface.Oxide.CallHook("GetAspectRatio", player.userID) ?? 0); // work
int ratio = (int)(PluginAspectRatio?.Call("GetAspectRatio", player.userID) ?? 0); // not work
[DOUBLEPOST=1453625562][/DOUBLEPOST]

Not work, AspectRatio is null.
[DOUBLEPOST=1453635699,1453624462][/DOUBLEPOST]This code is work.

Code:

var plugins = Interface.Oxide.GetLibrary<Plugins>();
PluginAspectRatio = plugins.Find("AspectRatio");

 

The PluginReference field is not available in the CSPlugin class, only in CSharpPlugin and its derived classes (the specific game plugin classes).
And when you are using PluginReference in a CSharpPlugin (or RustPlugin,......) then you should be able to use them like so:

Code:

[PluginReference] Plugin ThePluginsFileName;

or if the plugin contains invalid characters that you cannot use as the name of a variable

Code:

[PluginReference("0-FriendsApi")] Plugin FriendsApi;