游戏打不开。errorReport.txt里是这么说的。求助啊！

zhf2933

三个组件已装，但还是打不开。
错误报告是这么说的：：
Version: 1.4.7.0 Thread: RenderThread

Microsoft.Xna.Framework.Content.ContentLoadException: Error loading "UI\Company\pieces". File not found. ---> System.IO.FileNotFoundException: 未能找到文件“D:\Magicka\content\UI\Company\pieces.xnb”。
文件名:“D:\Magicka\content\UI\Company\pieces.xnb”
   在 System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   在 System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
   在 System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
   在 Microsoft.Xna.Framework.Content.ContentManager.OpenStream(String assetName)
   --- 内部异常堆栈跟踪的结尾 ---
   在 Microsoft.Xna.Framework.Content.ContentManager.OpenStream(String assetName)
   在 Microsoft.Xna.Framework.Content.ContentManager.ReadAsset[T](String assetName, Action`1 recordDisposableObject)
   在 Microsoft.Xna.Framework.Content.ContentManager.Load[T](String assetName)
   在 Magicka.GameLogic.GameStates.CompanyState.Initialize()
   在 Magicka.Game.LoadContent()
   在 Microsoft.Xna.Framework.Game.Initialize()
   在 Magicka.Game.Initialize()
   在 Microsoft.Xna.Framework.Game.Run()
   在 Magicka.Program.Main(String[] args)

0x0060 Microsoft.Xna.Framework.dll->Microsoft.Xna.Framework.Content.ContentManager.OpenStream
0x0027 Microsoft.Xna.Framework.dll->Microsoft.Xna.Framework.Content.ContentManager.ReadAsset
0x0085 Microsoft.Xna.Framework.dll->Microsoft.Xna.Framework.Content.ContentManager.Load
0x0122 Magicka.exe->Magicka.GameLogic.GameStates.CompanyState.Initialize
0x035b Magicka.exe->Magicka.Game.LoadContent
0x0054 Microsoft.Xna.Framework.Game.dll->Microsoft.Xna.Framework.Game.Initialize
0x0150 Magicka.exe->Magicka.Game.Initialize
0x0039 Microsoft.Xna.Framework.Game.dll->Microsoft.Xna.Framework.Game.Run
0x0139 Magicka.exe->Magicka.Program.Main