Ошибка e1696 c visual studio 2019

Hi Lslkaiaoqlaoaoa,

Welcome to MSDN forum.

According to your description, I might need to confirm some information from you. Which version of Visual Studio do you use? When did your issue appear, for example, change to use other version of operating system or maybe just create a new project after
installing VS? Which version of Windows system do you use?

I suggest you could refer to below steps to try to troubleshoot this issue.

#1. Try to reset Visual C++ settings.

Please open Visual Studio -> Tools -> Import and Export Settings… -> select
Reset all settings -> Next -> choose “No, just reset settings, overwriting my current settings” -> select
Visual C++ -> Finish

#2. Try to choose a corresponding Windows SDK version.

Please open your C++ project -> right-click your project ->
Properties -> Configuration Properties ->
General -> Windows SDK Version -> choose the corresponding version of your computer’s operating system.(like 10.0 latest installed version)

#3. Try to refresh VC++ Executable Directories.

Please open your C++ project -> right-click your project ->
Properties -> Configuration Properties -> VC++ Directories -> Executable Directories -> click on the drop down and select “Edit” ->
Uncheck “Inherit from parent or project defaults” ->
Check “Inherit from parent or project defaults” again -> OK ->
Rebuild the project -> close and restart VS to check if this issue could be solved.

#4. Try to make configuration of platform consistent.

Please check the configuration and platform of your Visual Studio from standard menu and open Properties Window of your project like #2 or #3, then on the top of the Property Page make the Configuration and Platform corresponding to your standard menu setting.

#5. Try to unload project and then reload project.

Please right-click your project and choose Unload Project -> right-click and then choose
Reload Project –> Rebuild Project and check if it could work this time.

#6. Try to repair Visual Studio.

Not sure which version of VS do you use. If you use VS 2017 or higher version of VS(like 2019), please open Visual Studio Installer -> find Visual Studio that the version you use ->
More -> Repair. If you use VS 2015 or lower version of VS, please open
Control Panel -> Programs -> Uninstall a program -> find Microsoft Visual Studio 20XX -> right-click it ->
Change -> Repair.

In addition, you could try to create a new C++ project and check if the newly created solution(project) could work well.
 

Hope all above could help you and any feedback would be great expected.

Best Regards,

Tianyu

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• Edited by

  Monday, October 28, 2019 6:47 AM

So I recently downloaded Windows Visual Studio 2019. I haven’t programmed in a while and I wanted to refresh myself with a basic «hello world» program. But for some reason I’m getting an error with my Stdafx.h header. The error code is E1696 «cannot open source file «stdafx.h»» anyone know how to fix it?