Error cs1031 требуется тип - Исправление ошибок и поиск оптимальных решений проблем

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Having trouble. Can’t find where I messed up. If anyone can spot the issue I’d appreciate it greatly. The error is: Error CS1031: Type expected
I’ve tried running the Unity Debug thing on the script with no luck. I just genuinely don’t see an issue.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;

public class AiStateMachine : 
{
    public AiState[] states;
    public AiAgent agent;
    public AiStateId currentState; 

    public AiStateMachine(AiAgent agent)
    {
        this.agent = agent;
        int numStates = System.Enum.Getnames(typeof(AiStateId)).Length;
        states = new AiState[numStates];

    }

    public void RegisterState(AiState state)
    {
        int index = (int)state.GetId();
        states[index] = state;
    }

    public AIStateMachine GetState(AiStateId stateId) 
    {
        int index = (int)stateId;
        return states[index];
    }

    public void Update() 
    {
        GetState(currentState)?.Update(agent);

    }

    public void ChangeState(AiStateId newState)
    {
        GetState(currentState)?.Exit(agent);
        currentState = newState;
        GetState(currentState)?.Enter(agent); 
    }
}

Michael Roy

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asked Dec 19, 2021 at 13:37

You have a dangling colon (:) after the class name. Since you aren’t inheriting any class, you shouldn’t have the colon there:

public class AiStateMachine 
{
    // ":" removed here ----^

answered Dec 19, 2021 at 13:40

MureinikMureinik

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While it isn’t necessarily helpful in this particular case I want to mention that if you google the error code there is usually some info from Microsoft to help some. Here’s the one for this error:

https://learn.microsoft.com/en-us/dotnet/csharp/misc/cs1031

In this case though it looks like you have a class that is expecting to derive from something by having a colon at the end of the class declaration without any info after it:

public class AiStateMachine :

Try removing the colon or adding whatever the class should inherit from. This page also has some great info to brush up on inheritance if needed:

https://learn.microsoft.com/en-us/dotnet/csharp/fundamentals/tutorials/inheritance

answered Dec 19, 2021 at 13:46

TriteTrite

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Question
In the below code how can I resolve type expected error cs:1031

publicclassPublicAndDeclare

{

[System.Runtime.InteropServices.

DllImport(«Plantcon.dll»,
EntryPoint=«TerminatePlantCon»,ExactSpelling=true,
CharSet=System.Runtime.InteropServices.CharSet.Ansi,SetLastError=true)]

}

publicstaticexternlongInitPlantCon();

Answers

The next fragment seems to work:

public
class
PublicAndDeclare
{

[System.Runtime.InteropServices.DllImport(«Plantcon.dll»,


EntryPoint = «TerminatePlantCon»,


ExactSpelling = true,


CharSet = System.Runtime.InteropServices.CharSet.Ansi,


SetLastError = true)]

public
static
extern
long InitPlantCon();
}

In which line the error is reported?
- Edited by
  
  Tuesday, April 9, 2013 6:14 AM
- Marked as answer by
  Bob Shen
  Tuesday, April 23, 2013 10:42 AM

Источник

        static void Main(string[] args)
        {
 
            int[,] a1 =
                {
                    {3, 7, 9, 2, 4, 6, 8, 1, 5},
                    {5, 2, 8, 1, 3, 7, 6, 9, 4},
                    {1, 6, 4, 5, 8, 9, 2, 7, 3},
                    {8, 4, 7, 0, 5, 2, 1, 6, 9},
                    {6, 1, 3, 8, 9, 4, 5, 2, 7},
                    {2, 9, 5, 6, 7, 1, 3, 4, 8},
                    {4, 3, 1, 9, 6, 8, 7, 1, 2},
                    {7, 5, 2, 4, 1, 3, 9, 8, 6},
                    {9, 8, 6, 7, 2, 5, 4, 3, 1}
                };
            if (SudocuValid(a1))
                Console.WriteLine("Судоку нарисовано Васей правильно ");
            else
                Console.WriteLine("Судоку нарисовано Васей не правильно ");
 
            int[,] a =
                {
                    {3, 7, 9, 2, 4, 6, 8, 1, 5},
                    {5, 2, 8, 1, 3, 7, 6, 9, 4},
                    {1, 6, 4, 5, 8, 9, 2, 7, 3},
                    {8, 4, 7, 3, 5, 2, 1, 6, 9},
                    {6, 1, 3, 8, 9, 4, 5, 2, 7},
                    {2, 9, 5, 6, 7, 1, 3, 4, 8},
                    {4, 3, 1, 9, 6, 8, 7, 5, 2},
                    {7, 5, 2, 4, 1, 3, 9, 8, 6},
                    {9, 8, 6, 7, 2, 5, 4, 3, 1}
                };
            if (SudocuValid(a))
                Console.WriteLine("Судоку нарисовано Петей правильно ");
            else
                Console.WriteLine("Судоку нарисовано Петей не правильно ");
    }

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