[UE4]虚幻UE4 .uproject文件无关联 右键菜单少了

前一段时间因为一些事，重装系统  然后重新安装UE4跟VS  ，突然发现。。。竟然之前的UE4原先的项目找不到了，然后用UE4打开就提示

“该文件没有与之关联的程序来执行该操作，请先安装一个程序。。。”

发现右键 .uproject 的菜单栏选项不见了，折腾了一下弄回来了

删除注册表

1. ctrl+r 输入 regegit 调出注册表
2. 删除 HKEY_CLASSES_ROOT 下的 .uproject

新建一个文本文档，然后改名为  UnrealProjectMenuRegistration.cmd，脚本源码在下面

:: UnrealProjectMenuRegistration.cmd
::
:: This batch file will try to find where the Unreal Engine is installed, then update your registry
:: to register the Unreal Project File type (and its right click menu for things such as generating
:: Visual Studio project files, and launching)
::
:: Run as an Administrator, as it's required for writing to HKLM.
::
:: Author: David Moore <david@sadrobot.co.nz>

@ECHO OFF

echo.
echo Locating where Unreal Engine is installed by checking the Windows registry...

FOR /F "tokens=2*" %%A IN ('reg query "HKLMSOFTWAREEpicGamesUnreal Engine" /v "INSTALLDIR"') DO (
SET "UnrealEngineDir=%%B"
)
IF "%UnrealEngineDir%"=="" GOTO CannotFindUnrealEngine

echo.
echo Using Unreal Engine directory: %UnrealEngineDir%

set LauncherPath=%UnrealEngineDir%LauncherEngineBinariesWin64UnrealVersionSelector.exe

echo.
echo Adding registry keys for the Unreal Project right click menu...

:: HKLMSOFTWAREClasses.uproject
reg ADD "HKLMSoftwareClasses.uproject" /ve /d Unreal.ProjectFile /f
IF ERRORLEVEL 1 (
echo Couldn't write to registry. Did you forget to run this batch file as an administrator?
goto TheEnd
)

:: HKLMSOFTWAREClassesUnreal.ProjectFile
reg ADD "HKLMSoftwareClassesUnreal.ProjectFile" /ve /d "Unreal Engine Project File" /f

:: HKLMSOFTWAREClassesUnreal.ProjectFileDefaultIcon
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileDefaultIcon" /ve /d ""%LauncherPath%"" /f

:: HKLMSOFTWAREClassesUnreal.ProjectFileshellopen
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshellopen" /ve /d "Open" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshellopencommand" /ve /d ""%LauncherPath%" /editor "%%1"" /f

:: HKLMSOFTWAREClassesUnreal.ProjectFileshell un
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell un" /ve /d "Launch game" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell un" /v Icon /t REG_SZ /d ""%LauncherPath%"" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell uncommand" /ve /d ""%LauncherPath%" /game "%%1"" /f

:: HKLMSOFTWAREClassesUnreal.ProjectFileshell ungenproj
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell ungenproj" /ve /d "Generate Visual Studio project files" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell ungenproj" /v Icon /t REG_SZ /d ""%LauncherPath%"" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshell ungenprojcommand" /ve /d ""%LauncherPath%" /projectfiles "%%1"" /f

:: HKLMSOFTWAREClassesUnreal.ProjectFileshellswitchversion
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshellswitchversion" /ve /d "Switch Unreal Engine version..." /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshellswitchversion" /v Icon /t REG_SZ /d ""%LauncherPath%"" /f
reg ADD "HKLMSoftwareClassesUnreal.ProjectFileshellswitchversioncommand" /ve /d ""%LauncherPath%" /switchversion "%%1"" /f

:Done
echo.
echo Done.
echo.
goto TheEnd

:CannotFindUnrealEngine
echo.
echo DOH! Can't find the Unreal Engine.
echo.
goto TheEnd

:TheEnd
pause

修改脚本

注释掉下面这一段代码

FOR /F "tokens=2*" %%A IN ('reg query "HKLMSOFTWAREEpicGamesUnreal Engine" /v "INSTALLDIR"') DO (
SET "UnrealEngineDir=%%B"
)
在注释的代码后加入一行，直接设置 启动器路径（C:Program Files (x86)Epic Games，如果是安装选择的其它路径请自行选择）

SET UnrealEngineDir=C:Program Files (x86)Epic Games

1. 右键管理员权限运行该脚本

2. done，项目文件 .uproject 的右键菜单栏选项 回来了