[BUG]关于UE5.6编译时出现“Microsoft.MakeFile.Targets(44,5): Error MSB3073”问题的解决

原项目时UE5.3的，我把它转换成UE5.6，提前删除了系统生成的中间文件，只保留编译必要的文件，使用UE5.6编译项目时，编译失败，Rider编辑器提示如下问题

bash 复制代码

11>Microsoft.MakeFile.Targets(44,5): Error MSB3073 : 命令""G:\Unreal Engine\UE_5.6\Engine\Build\BatchFiles\Build.bat" AuraEditor Win64 Development -Project="XXXXXXXXXXX" -WaitMutex -FromMsBuild -architecture=x64"已退出，代码为 6。

对应到出问题的代码：

xml 复制代码

<Target Name="Build" DependsOnTargets="PrepareForNMakeBuild;ResolveReferences;GetTargetPath;$(PreNMakeBuildTarget)" Returns="$(NMakeManagedOutput)">
    <VCMessage Code="MSB8005" Type="Warning" Arguments="NMakeBuildCommandLine" Condition="'$(NMakeBuildCommandLine)'==''"/>
    <Exec Command="$(NMakeBuildCommandLine)" Condition="'$(NMakeUseOemCodePage)' == 'true' and '$(NMakeBuildCommandLine)'!=''"/>
    <Exec Command="$(NMakeBuildCommandLine)" UseUtf8Encoding="Always" StdErrEncoding="UTF-8" StdOutEncoding="UTF-8" Condition="'$(NMakeUseOemCodePage)' != 'true' and '$(NMakeBuildCommandLine)'!=''"/>
  </Target>

指向

xml 复制代码

<Exec Command="$(NMakeBuildCommandLine)" Condition="'$(NMakeUseOemCodePage)' == 'true' and '$(NMakeBuildCommandLine)'!=''"/>

我找了一个UE5.6编译成功的项目和当前项目，对比了一下Target.cs文件：

成功的Target.cs文件

csharp 复制代码

// Copyright Epic Games, Inc. All Rights Reserved.

using UnrealBuildTool;
using System.Collections.Generic;

public class RPGGameTarget : TargetRules
{
	public RPGGameTarget(TargetInfo Target) : base(Target)
	{
		Type = TargetType.Game;
		DefaultBuildSettings = BuildSettingsVersion.V5;
		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_6;
		ExtraModuleNames.Add("RPGGame");
	}
}

失败的Target.cs文件

csharp 复制代码

// Copyright Druid Mechanics

using UnrealBuildTool;
using System.Collections.Generic;

public class AuraTarget : TargetRules
{
	public AuraTarget(TargetInfo Target) : base(Target)
	{
		Type = TargetType.Game;
		DefaultBuildSettings = BuildSettingsVersion.V2;

		ExtraModuleNames.AddRange( new string[] { "Aura" } );
	}
}

成功的Editor.Target.cs文件

csharp 复制代码

// Copyright Epic Games, Inc. All Rights Reserved.

using UnrealBuildTool;
using System.Collections.Generic;

public class RPGGameEditorTarget : TargetRules
{
	public RPGGameEditorTarget( TargetInfo Target) : base(Target)
	{
		Type = TargetType.Editor;
		DefaultBuildSettings = BuildSettingsVersion.V5;
		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_6;
		ExtraModuleNames.Add("RPGGame");
	}
}

失败的Editor.Target.cs文件

csharp 复制代码

// Copyright Druid Mechanics

using UnrealBuildTool;
using System.Collections.Generic;

public class AuraEditorTarget : TargetRules
{
	public AuraEditorTarget(TargetInfo Target) : base(Target)
	{
		Type = TargetType.Editor;
		DefaultBuildSettings = BuildSettingsVersion.V2;

		ExtraModuleNames.AddRange( new string[] { "Aura" } );
	}
}

看起来新版本字段上有一些变化，所以将失败的cs文件根据新的字段改写一下：

更新后的Target.cs文件

csharp 复制代码

// Copyright Druid Mechanics

using UnrealBuildTool;
using System.Collections.Generic;

public class AuraTarget : TargetRules
{
	public AuraTarget(TargetInfo Target) : base(Target)
	{
		Type = TargetType.Game;
		DefaultBuildSettings = BuildSettingsVersion.V5;
		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_6;
		ExtraModuleNames.Add("Aura");
	}
}

更新后的Editor.Target.cs文件

csharp 复制代码

// Copyright Druid Mechanics

using UnrealBuildTool;
using System.Collections.Generic;

public class AuraEditorTarget : TargetRules
{
	public AuraEditorTarget(TargetInfo Target) : base(Target)
	{
		Type = TargetType.Editor;
		DefaultBuildSettings = BuildSettingsVersion.V5;
		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_6;
		ExtraModuleNames.Add("Aura");
	}
}

删除不必要的中间文件，再用uproject重新生成sln，再次编译

又提示了新的错误：提示只支持uint8

cpp 复制代码

UENUM(BlueprintType)
enum class EEffectApplicationPolicy
{
	ApplyOnOverlap,
	ApplyOnEndOverlap,
	DoNotApply
};

UENUM(BlueprintType)
enum class EEffectRemovalPolicy
{
	RemoveOnEndOverlap,
	DoNotRemove
};

修改后

cpp 复制代码

UENUM(BlueprintType)
enum class EEffectApplicationPolicy: uint8
{
	ApplyOnOverlap,
	ApplyOnEndOverlap,
	DoNotApply
};

UENUM(BlueprintType)
enum class EEffectRemovalPolicy: uint8
{
	RemoveOnEndOverlap,
	DoNotRemove
};

再次编译又出现新的问题：

cpp 复制代码

11>AuraAbilitySystemLibrary.cpp(465,8): Error C2027 : 使用了未定义类型"FOverlapResult"

参考如下文档：

Gameplay Ability System Course Project - Development Blog

FOverlapResult::FOverlapResult

添加一个头文件：

cpp 复制代码

#include "Engine/OverlapResult.h"

编译成功