HELP!? Compiler Errors on Client/Server Login Database

EDIT: just to let everyone know, Im a noob at all this,especially C#. I understand most of the code actually (except the xml region lol), so please try to be descriptive in answers. This is a learning experience for me.

EDIT2: I'm not sure if this is relevant to my issue, but i am using Unity Free

ok, so first off I am following wikened's tutorials:
1: http://www.youtube.com/watch?v=RK6o9wMsV0I
2: http://www.youtube.com/watch?v=CZ2icJLTOzs
3: http://www.youtube.com/watch?v=5uw4enkJgv0
4: http://www.youtube.com/watch?v=owZ8KdONduU
5: http://www.youtube.com/watch?v=sYBZ1UhB1tM
6: http://www.youtube.com/watch?v=3tjX4tBhDas
7: http://www.youtube.com/watch?v=d4j35w4JFvo

I am attempting to make a basic login system for my game that saves player information in xml files on the server side
I make 3 scenes
ClientLogin , where the login screen will be. the user types name,pass into the fields and can login or create an account
ClientPlay , this is empty as of now, it will someday be the actual game
Server , this is my server
In the scene ClientLogin
create empty gameobject named Info, attach the Info.cs script
create empty gameobject named Login, attach Network View, and then attach ClientLogin.cs
In the scene Server
create empty gameobject named Server, attach Network View, and then attach Server.cs
I build the Server.exe with only the Server scene included, I make it Run in Background
I build the Client.exe with the ClientLogin (0) and ClientPlay (1) scenes, I make it Run in Background

Info.cs

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. public class Info : MonoBehaviour
4. {
5.     public static string Owner;
6.     void Awake()
7.     {
8.         DontDestroyOnLoad(this);
9.     }
10. }

AccountStructure.cs

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. public class AccountStructure
4. {
5.     public Account account;
6.     public struct Account
7.     {
8.         public string Username;
9.         public string Password;
10.         public Character character;
11.         public struct Character
12.         {
13.             public Vector3 Position;
14.             public Inventory inventory;
15.             public struct Inventory
16.             {
17.                 public int One;
18.                 public int Two;
19.                 public int Three;
20.                 public int Four;
21.                 public int Five;
22.                 public int Six;
23.                 public int Seven;
24.                 public int Eight;
25.                 public int Nine;
26.                 public int Ten;
27.             }
28.         }
29.     }
30. }

ClientLogin.cs

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. public class ClientLogin : MonoBehaviour
4. {
5.     private string username = "";
6.     private string password = "";
7.     void Connect()
8.     {
9.         Network.Connect("127.0.0.1",25000);
10.     }
11.     void OnGUI()
12.     {
13.         if(Network.peerType == NetworkPeerType.Disconnected)
14.         {
15.             if(GUI.Button(new Rect(10,10,100,30),"Connect"))
16.             {
17.                 Connect ();
18.             }
19.         }
20.         else
21.         {
22.             username = GUI.TextArea(new Rect(10,10,120,30),username);
23.             password = GUI.TextArea(new Rect(10,40,120,30),password);
24.             if(GUI.Button(new Rect(10,70,60,30),"Login"))
25.             {
26.                 networkView.RPC("AccountLogin",RPCMode.Server,username,password,Network.player);
27.             }
28.             if(GUI.Button(new Rect(70,70,60,30),"Create"))
29.             {
30.                 networkView.RPC("AccountCreate",RPCMode.Server,username,password,Network.player);
31.             }
32.         }
33.     }
34.     [RPC]
35.     public void AccountLogin(string Username,string Password,NetworkPlayer player)
36.     {
37.         Info.Owner = Username;
38.         Application.LoadLevel("ClientPlay");
39.     }
40.     [RPC]
41.     public void AccountCreate(string Username,string Password,NetworkPlayer player)
42.     {
43.     }
44. }

Server.cs

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Xml;
4. using System.Xml.Serialization;
5. using System.IO;
6. using System.Text;
7. public class Server : MonoBehaviour
8. {
9.     public Vector3 Startpos = new Vector3(1f,1f,1f);
10.     string _FileLocation,_FileName;
11.     AccountStructure RegisterData;
12.     string _data;
13.     public void Start()
14.     {
15.         _FileLocation = Application.dataPath;
16.         RegisterData = new AccountStructure();
17.     }
18.     void OnGUI()
19.     {
20.         if(Network.peerType == NetworkPeerType.Disconnected)
21.         {
22.             if(GUI.Button(new Rect(10,10,100,30),"Start"))
23.             {
24.                 Network.InitializeServer(32,25000,false);
25.             }
26.         }
27.         if(Network.peerType != NetworkPeerType.Disconnected)
28.         {
29.             if(GUI.Button(new Rect(10,10,100,30),"Stop"))
30.             {
31.                 Network.Disconnect ();
32.             }
33.         }
34.     }
35.     [RPC]
36.     public void AccountLogin(string username,string password,NetworkPlayer player)
37.     {
38.         LoadXML(username + ".xml");
39.         if(_data.ToString() != "")
40.         {
41.             RegisterData = (AccountStructure)DeserializeObject(_data);
42.             if(RegisterData.account.Password == password)
43.             {
44.                 networkView.RPC("AccountLogin",username,password,Network.player);  
45.             }
46.         }
47.     }
48.     [RPC]
49.     public void AccountCreate(string username,string password,NetworkPlayer player)
50.     {
51.         if(Network.isServer)
52.         {
53.             RegisterData.account.Username = username;
54.             RegisterData.account.Password = password;
55.             RegisterData.account.character.Position = Startpos;
56.             _data = SerializeObject(RegisterData);
57.             CreateXML(username + ".xml");
58.         }
59.     }
60. #region
61.     string UTF8ByteArrayToString(byte[] characters)
62.     {
63.         UTF8Encoding encoding = new UTF8Encoding();
64.         string constructedString = encoding.GetString(characters);
65.         return (constructedString);
66.     }
67.     byte[] StringToUTF8ByteArray(string pXmlString)
68.     {
69.         UTF8Encoding encoding = new UTF8Encoding();
70.         byte[] byteArray = encoding.GetBytes(pXmlString);
71.         return byteArray;
72.     }
73.     string SerializeObject(object pObject)
74.     {
75.         string XmlizedString = null;
76.         MemoryStream memoryStream = new MemoryStream();
77.         XmlSerializer xs = new XmlSerializer(typeof(AccountStructure));
78.         XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
79.         xs.Serialize(xmlTextWriter, pObject);
80.         memoryStream = (MemoryStream)xmlTextWriter.BaseStream;
81.         XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray());
82.         return XmlizedString;
83.     }
84.     object DeserializeObject(string pXmlizedString)
85.     {
86.         XmlSerializer xs = new XmlSerializer(typeof(AccountStructure));
87.         MemoryStream memoryStream = new MemoryStream(StringToUTF8ByteArray(pXmlizedString));
88. //      XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
89.         return xs.Deserialize(memoryStream);
90.     }
91.     void CreateXML(string _FileName)
92.     {
93.         StreamWriter writer;
94.         FileInfo t = new FileInfo(_FileLocation+ "/Database/Accounts/" + FileName);
95.         if(!t.Exists)
96.         {
97.             writer = t.CreateText();
98.         }
99.         else
100.         {
101.             t.Delete();
102.             writer = t.CreateText();
103.         }
104.         writer.Write(_data);
105.         writer.Close();
106.         Debug.Log("File Written");
107.     }
108.     void LoadXML(string _FileName)
109.     {
110.         StreamReader r = File.OpenText(_FileLocation+ "/Database/Accounts/" + FileName);
111.         string _info = r.ReadToEnd();
112.         r.Close();
113.         _data=_info;
114.         Debug.Log("File Read");
115.     }
116. #endregion
117. }

The Errors: (5 errors, 2 warnings)

Code (csharp):

1. building target 5
2. - starting compile Assets/Builds/Server/Server_Data/Managed/Assembly-CSharp.dll, for buildtarget 5
3. ApplicationException: Unable to find a suitable compiler
4.   at UnityEditor.Scripting.ScriptCompilers.CreateCompilerInstance (MonoIsland island, Boolean buildingForEditor, BuildTarget targetPlatform) [0x00074] in C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\Scripting\ScriptCompilers.cs:99
5. UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
6. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions, Boolean) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:606)
7. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:483)
8. UnityEditor.BuildPlayerWindow:GUIBuildButtons(Boolean, Boolean, Boolean, BuildPlatform) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1354)
9. UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1322)
10. UnityEditor.BuildPlayerWindow:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:999)
11. System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception)
12. System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
13. System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
14. UnityEditor.HostView:Invoke(String, Object) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:234)
15. UnityEditor.HostView:Invoke(String) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:227)
16. UnityEditor.HostView:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:120)
17.  
18. (Filename: C:/BuildAgent/work/812c4f5049264fad/Editor/Mono/Scripting/ScriptCompilers.cs Line: 99)
19.  
20. Failed to create compiler instance
21. UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
22. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions, Boolean) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:606)
23. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:483)
24. UnityEditor.BuildPlayerWindow:GUIBuildButtons(Boolean, Boolean, Boolean, BuildPlatform) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1354)
25. UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1322)
26. UnityEditor.BuildPlayerWindow:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:999)
27. System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception)
28. System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
29. System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
30. UnityEditor.HostView:Invoke(String, Object) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:234)
31. UnityEditor.HostView:Invoke(String) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:227)
32. UnityEditor.HostView:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:120)
33.  
34. [C:/BuildAgent/work/812c4f5049264fad/Editor/Src/AssetPipeline/MonoCompile.cpp line 89]
35. (Filename: C:/BuildAgent/work/812c4f5049264fad/Editor/Mono/BuildPlayerWindow.cs Line: 606)
36.  
37. - Finished compile Assets/Builds/Server/Server_Data/Managed/Assembly-CSharp.dll
38. Compilation failed because the compiler couldn't be executed!
39.  
40. (Filename:  Line: 84)
41.  
42. Error building Player because scripts had compiler errors
43.  
44. (Filename:  Line: -1)
45.  
46. - starting compile Assets/Builds/Server/Server_Data/Managed/Assembly-CSharp.dll, for buildtarget 5
47. ApplicationException: Unable to find a suitable compiler
48.  at UnityEditor.Scripting.ScriptCompilers.CreateCompilerInstance (MonoIsland island, Boolean buildingForEditor, BuildTarget targetPlatform) [0x00074] in C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\Scripting\ScriptCompilers.cs:99
49. UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
50. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions, Boolean) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:606)
51. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:483)
52. UnityEditor.BuildPlayerWindow:GUIBuildButtons(Boolean, Boolean, Boolean, BuildPlatform) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1354)
53. UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1322)
54. UnityEditor.BuildPlayerWindow:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:999)
55. System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception)
56. System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
57. System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
58. UnityEditor.HostView:Invoke(String, Object) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:234)
59. UnityEditor.HostView:Invoke(String) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:227)
60. UnityEditor.HostView:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:120)
61.  
62. (Filename: C:/BuildAgent/work/812c4f5049264fad/Editor/Mono/Scripting/ScriptCompilers.cs Line: 99)
63.  
64. Failed to create compiler instance
65. UnityEditor.BuildPipeline:BuildPlayerInternalNoCheck(String[], String, BuildTarget, BuildOptions, Boolean)
66. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions, Boolean) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:606)
67. UnityEditor.BuildPlayerWindow:BuildPlayerWithDefaultSettings(Boolean, BuildOptions) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:483)
68. UnityEditor.BuildPlayerWindow:GUIBuildButtons(Boolean, Boolean, Boolean, BuildPlatform) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1354)
69. UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:1322)
70. UnityEditor.BuildPlayerWindow:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\BuildPlayerWindow.cs:999)
71. System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception)
72. System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
73. System.Reflection.MethodBase:Invoke(Object, Object[]) (at /Applications/buildAgent/work/3df08680c6f85295/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
74. UnityEditor.HostView:Invoke(String, Object) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:234)
75. UnityEditor.HostView:Invoke(String) (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:227)
76. UnityEditor.HostView:OnGUI() (at C:\BuildAgent\work\812c4f5049264fad\Editor\Mono\GUI\DockArea.cs:120)
77.  
78. [C:/BuildAgent/work/812c4f5049264fad/Editor/Src/AssetPipeline/MonoCompile.cpp line 89]
79. (Filename: C:/BuildAgent/work/812c4f5049264fad/Editor/Mono/BuildPlayerWindow.cs Line: 606)
80.  
81. - Finished compile Assets/Builds/Server/Server_Data/Managed/Assembly-CSharp.dll
82. Compilation failed because the compiler couldn't be executed!
83.  
84. (Filename:  Line: 84)
85.  
86. Unloading 1 Unused Serialized files (Serialized files now loaded: 0 / Dirty serialized files: 0)
87.  
88. Unloading 4 unused Assets to reduce memory usage. Loaded Objects now: 566. Operation took 32.487001 ms.
89. System memory in use: 13.2 MB.
90.  
91. *** Cancelled 'Build.Player.WindowsStandalonePlayer' in 0 seconds

If ANYBODY can please help me work this out,it'd be greatly appreciated! I've been banging my head off a wall for hours


If somebody could just point me in the right direction to understanding these errors

 

Problem solved!

turns out i was building into the assets directory and that was the issue the whole time

 

I just do an AssetDatabase.Refresh() after creating assets to solve my problem.