我目前在大型项目中遇到错误。下面Unity C#InvalidCastException:无法从源类型转换为目标类型
代码:
public void SaveFileExists(){
Debug.Log ("SaveFileExists was called.");
//GameObject.Find ("_Scripts").GetComponent<SaveGame>().Load();
UserData userdata = null;
//Creating a new BinaryFormatter
BinaryFormatter bf = new BinaryFormatter();
//Making a file which now contains the Un-Serialized File
FileStream file = File.Open (Application.persistentDataPath + ("/UserData." + accountLoginAttempt), FileMode.Open);
//Assigning the values of the saved file to the new file
//UserData newData = (UserData)bf.Deserialize (file);
userdata = bf.Deserialize(file) as UserData;
//Assigning the values from the save file to the variables in this script.
accountLoginAttempt = userdata.username;
accountLevel = userdata.userlevel;
//Assinging the values from this script to the _PlayerManager script. (This is where the UI gets it's info).
GameObject.Find ("_AccountInfoSaveHolder").GetComponent<HoldInfo>().UserInfo = accountLoginAttempt;
GameObject.Find ("_AccountInfoSaveHolder").GetComponent<HoldInfo>().UserLevel = accountLevel;
errortext.text = "Login Successful.";
Canvas.ForceUpdateCanvases();
}
序列化的领域也低于:
[System.Serializable]
class UserData{
public string username;
public int userlevel;
}
我试图加载其存储在一个Application.persistentDataPath SAVEFILE。将UserData.username和UserData.userlevel分配给脚本中的变量。
我收到的错误是:
InvalidCastException的:无法从源类型转换为目标 类型。
更多细节:
LoginScript.SaveFileExists()(在 资产/脚本/帐户系统/ LoginScript.cs:126) LoginScript.OnLoginClick()(在 资产/脚本/ AccountSystem/LoginScript.cs:104) UnityEngine.Events.InvokableCall.Invoke(System.Object [] args)(在 /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:153) UnityEngine .Events.InvokableCallList.Invoke(System.Object [] 个参数)(在 /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:634) UnityEngine.Events.UnityEventBase.Invoke(System.Object的[]参数) (在 /用户/ ()(在 /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs: 53) UnityEngine.UI.Button.Press()(在 /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:35) UnityEngine.UI.Button .OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData)(位于 /Users/builduser/buildslave/unity/b uild /扩展/ guisystem/UnityEngine.UI/UI /核心/ Button.cs:44) UnityEngine.EventSystems.ExecuteEvents.Execute(IPointerClickHandler 处理程序,UnityEngine.EventSystems.BaseEventData EVENTDATA)(在 /用户/ builduser/buildslave /团结/建造/扩展/ guisystem/UnityEngine.UI /的EventSystem/ExecuteEvents.cs:52) UnityEngine.EventSystems.ExecuteEvents.Execute [IPointerClickHandler] (UnityEngine.GameObject目标,UnityEngine.EventSystems.BaseEventData EVENTDATA,UnityEngine.EventSystems。 EventFunction`1仿函数)(在 /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:269) UnityEngine.EventSystems.EventSystem:更新()
编辑:
SaveGame。CS:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using UnityEngine.SceneManagement;
public class SaveGame : MonoBehaviour {
//Saved Variables
[Header("Saved Variables")]
public string savedname;
public string attemptedlogin;
public int savedlevel;
//Loaded Variables
[Header("Loaded Variables")]
public string loadedname;
public int loadedlevel;
public void Awake(){
if (SceneManager.GetActiveScene().name == "GameScene") {
Load();
}
}
public void Save(){
savedname = GameObject.Find ("_Scripts").GetComponent<PlayerManager>().PlayerName;
savedlevel = GameObject.Find ("_Scripts").GetComponent<PlayerManager>().UserLevel;
BinaryFormatter bf = new BinaryFormatter();
FileStream file = File.Open(Application.persistentDataPath + ("/UserData." + savedname), FileMode.Create);
UserData newData = new UserData();
newData.username = savedname;
newData.userlevel = savedlevel;
bf.Serialize(file, newData);
file.Close();
}
}
我也删除了所有System.Serializable类的在我的剧本,并提出了所谓的UserDataSerialize.cs脚本包含:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[System.Serializable]
class UserData{
public string username;
public int userlevel;
}
现在我得到的错误是:
TypeLoadException: Could not load type 'SaveGame+UserData'.
System.Reflection.Assembly.GetType (System.String name, Boolean throwOnError, Boolean ignoreCase) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/Assembly.cs:398)
System.Reflection.Assembly.GetType (System.String name, Boolean throwOnError) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/Assembly.cs:381)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetDeserializationType (Int64 assemblyId, System.String className) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:833)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadTypeMetadata (System.IO.BinaryReader reader, Boolean isRuntimeObject, Boolean hasTypeInfo) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:637)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectInstance (System.IO.BinaryReader reader, Boolean isRuntimeObject, Boolean hasTypeInfo, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:269)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject (BinaryElement element, System.IO.BinaryReader reader, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:195)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject (BinaryElement element, System.IO.BinaryReader reader, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:223)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject (BinaryElement element, System.IO.BinaryReader reader) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:130)
System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph (BinaryElement elem, System.IO.BinaryReader reader, Boolean readHeaders, System.Object& result, System.Runtime.Remoting.Messaging.Header[]& headers) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectReader.cs:104)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/BinaryFormatter.cs:179)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/BinaryFormatter.cs:136)
LoginScript.SaveFileExists() (at Assets/Scripts/AccountSystem/LoginScript.cs:111)
LoginScript.OnLoginClick() (at Assets/Scripts/AccountSystem/LoginScript.cs:84)
UnityEngine.Events.InvokableCall.Invoke (System.Object[] args) (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:153)
UnityEngine.Events.InvokableCallList.Invoke (System.Object[] parameters) (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:634)
UnityEngine.Events.UnityEventBase.Invoke (System.Object[] parameters) (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent.cs:769)
UnityEngine.Events.UnityEvent.Invoke() (at /Users/builduser/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:53)
UnityEngine.UI.Button.Press() (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:35)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:44)
UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:52)
UnityEngine.EventSystems.ExecuteEvents.Execute[IPointerClickHandler] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.EventFunction`1 functor) (at /Users/builduser/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:269)
UnityEngine.EventSystems.EventSystem:Update()
唯一的显式转换是'BinaryFormatter.Deserialize'键入'UserData'的结果。你确定这个文件是你所期望的格式吗? –
@AndyLamb我这么认为?你预期的格式究竟是什么意思。类'UserData'是一个字符串'用户名',后跟一个int'userlevel'。 – Valkarth
你的Unity版本是什么?你还可以把你的保存代码放在你的问题中吗? – Programmer