Plugin compiling errors

[wsensor]

------ Build started: Project: XNAHelpers, Configuration: Debug Any CPU ------
XNAHelpers -> C:\Users_\Desktop\Terraria-API-666\terra\XNAHelpers\bin\Debug\XNAHelpers.dll
------ Build started: Project: TerrariaAPI, Configuration: Debug Any CPU ------
TerrariaAPI -> C:\Users_\Desktop\Terraria-API-666\TerrariaAPI.dll
------ Build started: Project: ItemPlugin, Configuration: Debug Any CPU ------
C:\Users_\Desktop\Terraria-API-666\terra\ItemPlugin\ItemManager.cs(64,18): error CS1061: 'Terraria.Item' does not contain a definition for 'RealSetDefaults' and no extension method 'RealSetDefaults' accepting a first argument of type 'Terraria.Item' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\ItemPlugin\ItemManager.cs(71,18): error CS1061: 'Terraria.Item' does not contain a definition for 'RealSetDefaults' and no extension method 'RealSetDefaults' accepting a first argument of type 'Terraria.Item' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\ItemPlugin\ItemHelper.cs(16,18): error CS1061: 'Terraria.Item' does not contain a definition for 'RealSetDefaults' and no extension method 'RealSetDefaults' accepting a first argument of type 'Terraria.Item' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\ItemPlugin\ItemEx.cs(736,29): error CS1061: 'Terraria.Item' does not contain a definition for 'manaRegen' and no extension method 'manaRegen' accepting a first argument of type 'Terraria.Item' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\ItemPlugin\ItemEx.cs(740,22): error CS1061: 'Terraria.Item' does not contain a definition for 'manaRegen' and no extension method 'manaRegen' accepting a first argument of type 'Terraria.Item' could be found (are you missing a using directive or an assembly reference?)

Compile complete -- 5 errors, 0 warnings
------ Build started: Project: TexturePlugin, Configuration: Debug Any CPU ------
TexturePlugin -> C:\Users_\Desktop\Terraria-API-666\terra\TexturePlugin\Plugins\TexturePlugin.dll
------ Build started: Project: TeleportPlugin, Configuration: Debug Any CPU ------
C:\Users_\Desktop\Terraria-API-666\terra\TeleportPlugin\TeleportPlugin.cs(252,22): error CS1061: 'Terraria.Main' does not contain a definition for 'spriteBatch' and no extension method 'spriteBatch' accepting a first argument of type 'Terraria.Main' could be found (are you missing a using directive or an assembly reference?)

Compile complete -- 1 errors, 0 warnings
------ Build started: Project: ResolutionPlugin, Configuration: Debug Any CPU ------
C:\Users_\Desktop\Terraria-API-666\terra\ResolutionPlugin\ResolutionPlugin.cs(59,22): error CS1061: 'Terraria.Main' does not contain a definition for 'graphics' and no extension method 'graphics' accepting a first argument of type 'Terraria.Main' could be found (are you missing a using directive or an assembly reference?)

Compile complete -- 1 errors, 0 warnings
------ Build started: Project: MinimapPlugin, Configuration: Debug Any CPU ------
C:\Users_\Desktop\Terraria-API-666\terra\MinimapPlugin\MinimapPlugin.cs(152,22): error CS1061: 'Terraria.Main' does not contain a definition for 'spriteBatch' and no extension method 'spriteBatch' accepting a first argument of type 'Terraria.Main' could be found (are you missing a using directive or an assembly reference?)

Compile complete -- 1 errors, 0 warnings
------ Build started: Project: TrainerPlugin, Configuration: Debug Any CPU ------
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerHelper.cs(216,17): error CS0122: 'Terraria.WorldGen' is inaccessible due to its protection level
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerHelper.cs(229,17): error CS0122: 'Terraria.WorldGen' is inaccessible due to its protection level
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerHelper.cs(254,17): error CS0122: 'Terraria.WorldGen' is inaccessible due to its protection level
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerHelper.cs(267,17): error CS0122: 'Terraria.WorldGen' is inaccessible due to its protection level
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerPlugin.cs(350,20): error CS1061: 'Terraria.Player' does not contain a definition for 'SpeedModifier' and no extension method 'SpeedModifier' accepting a first argument of type 'Terraria.Player' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerPlugin.cs(398,24): error CS1061: 'Terraria.Player' does not contain a definition for 'SpeedModifier' and no extension method 'SpeedModifier' accepting a first argument of type 'Terraria.Player' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerPlugin.cs(418,24): error CS1061: 'Terraria.Player' does not contain a definition for 'magicBoost' and no extension method 'magicBoost' accepting a first argument of type 'Terraria.Player' could be found (are you missing a using directive or an assembly reference?)
C:\Users_\Desktop\Terraria-API-666\terra\TrainerPlugin\TrainerPlugin.cs(463,24): error CS1061: 'Terraria.Player' does not contain a definition for 'archer' and no extension method 'archer' accepting a first argument of type 'Terraria.Player' could be found (are you missing a using directive or an assembly reference?)

Compile complete -- 8 errors, 0 warnings
------ Skipped Build: Project: TempPlugin, Configuration: Debug Any CPU ------
Project not selected to build for this solution configuration
------ Skipped Build: Project: ScreenShotPlugin, Configuration: Debug Any CPU ------
Project not selected to build for this solution configuration
========== Build: 3 succeeded or up-to-date, 5 failed, 2 skipped ==========