未为项目设置OutputPath属性（C ++，空白新解决方案，VS2017）

Question

It happens in a complex solution, but I can reproduce it in a new empty solution.

I built it ( ctrl+shift+B ) with debug mode, X86, diagnostic.

1> Set Property: _InvalidConfigurationMessageText= The OutputPath property is not set for project 'ConsoleApplication1.vcxproj'. Please check to make sure that you have specified a valid combination of Configuration and Platform for this project. Configuration='Debug' Platform='Win32'. 1> Set Property: _InvalidConfigurationMessageText=The OutputPath property is not set for project 'ConsoleApplication1.vcxproj'. Please check to make sure that you have specified a valid combination of Configuration and Platform for this project. Configuration='Debug' Platform='Win32'. This error may also appear in some other project is trying to follow a project-to-project reference to this project , this project has been unloaded or is not included in the solution, and the referencing project does not build using the same or an equivalent Configuration or Platform.

^ I make sure that there isn't any References that it claims.

Here is what I have tried.

First, a part of my .vcxproj ( link to the full file ) looks like this:-

  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <UseDebugLibraries>true</UseDebugLibraries>
    <PlatformToolset>v141</PlatformToolset>
    <CharacterSet>Unicode</CharacterSet>
    ### I will insert something here ###
  </PropertyGroup>

1. According to a SO link and another one , I should insert one of these lines at ### :-

    <OutputPath>$(Configuration)\\$(Platform)\\</OutputPath> <OutputPath>$(SolutionDir)$(Configuration)\\</OutputPath> <OutputPath>bin\\$(Platform)\\</OutputPath> 

2. Same as above, but add it in <ItemGroup Label="ProjectConfigurations">

3. Remove Label="Configuration" .

4. According to another SO link , I also tried AnyCPU or Any CPU (tested in a more complex solution, but a new empty solution doesn't have it.).

5. A Microsoft link states that Output Path is for C# . In C++ , I must use Output Directory . It is OutDir .

    <OutDir>$(SolutionDir)$(Configuration)\\</OutDir> <OutDir>$(Configuration)\\$(Platform)\\</OutDir> 

6. Do above things, but in a property sheet.

7. Do above things, but also unloaded-reload project, and even restart VS2017.

After I tried every combination, the warning still exists.

The program can be compiled and run correctly,
but I believe it is a cause of unnecessary recompilation in a much larger solution.

Question: How to solve the warning/error?

OutputPath word in the console is suspicious.
I doubt VS recognize my solution as C# . (is it even possible? - my test project has std::cout )

For some reasons, most SO questions about this error are related to msbuild or C# or .net ( another one ), not C++ .

Reply

There is no such Win32 option in the combo box, so I create a new one.
Configuration Manager > Active solution platform : <New...>

I also make sure that the setting is correct :-

However, I still got the same error message.

Answer 1

You have suspicious platform set - x86, change it to Win32.

UPD.: so the problem appears to be not with the project, but with Visual Studio installation - try to repair/reinstall it.

Answer 2

On my case, we moved the project from a different system, so, some of the directories were pointing to a wrong (non default) path.
On Solution Explorer , right click the project name, select Unload the project , then, right click again and select Edit the xxx.csproj , finally search, check and fix your <OutputPath>bin\\Debug\\</OutputPath> or <OutputPath>bin\\Release\\</OutputPath> on your different PropertyGroup conditions.