C++ new project

[narmstro]

So I’m just tinkering around with C++. Not my primary language.

Every time I create a new project in VS code using the template generator the build fails with multiple errors. Is this normal. I haven’t even written any code yet and the build fails.

Did a fresh installation of WPILib’s VS code. Don’t see anything in the docs having to do anything special. Latest build, Windows 10, log file included below

See file:///C:/Users/Public/wpilib/test/build/tmp/compileFrcUserProgramTestWindowsx86-64ReleaseGoogleTestExeFrcUserProgramCpp/output.txt for all output for compileFrcUserProgramTestWindowsx86-64ReleaseGoogleTestExeFrcUserProgramCpp.
compiling Robot.cpp failed.
Robot.cpp
C:\Users\Public\wpilib\test\src\main\include\Robot.h(7): fatal error C1083: Cannot open include file: ‘optional’: No such file or directory
cl : Command line warning D9002 : ignoring unknown option ‘/std:c++20’
cl : Command line warning D9002 : ignoring unknown option ‘/permissive-’
cl : Command line warning D9002 : ignoring unknown option ‘/Zc:__cplusplus’
cl : Command line warning D9002 : ignoring unknown option ‘/Zc:preprocessor’

compiling RobotContainer.cpp failed.
RobotContainer.cpp
C:\Users\neeba.gradle\caches\transforms-3\9c6bb2103a3d82450f87644c2c782003\transformed\wpilibNewCommands-cpp-2023.4.3-headers\frc2/command/CommandPtr.h(10): fatal error C1083: Cannot open include file: ‘span’: No such file or directory
cl : Command line warning D9002 : ignoring unknown option ‘/std:c++20’
cl : Command line warning D9002 : ignoring unknown option ‘/permissive-’
cl : Command line warning D9002 : ignoring unknown option ‘/Zc:__cplusplus’
cl : Command line warning D9002 : ignoring unknown option ‘/Zc:preprocessor’

Finished compileFrcUserProgramTestWindowsx86-64ReleaseGoogleTestExeFrcUserProgramCpp, see full log file:///C:/Users/Public/wpilib/test/build/tmp/compileFrcUserProgramTestWindowsx86-64ReleaseGoogleTestExeFrcUserProgramCpp/output.txt.

[nuttle]

This does not look usual to me. The errors look as though C++ compiler/headers are not right somehow. Did you choose any non-default options when you did the fresh install? Maybe send a link to the instructions you followed?

[narmstro]

Command Based Advanced (no skeleton). Turned the simulator on.

Other than that nothing out of the ordinary (to me at least)

[narmstro]

Worked now with no simulator option checked. I knew I had to install that separately with VS build tools and such, but didn’t think selecting it would prevent a build.

[Peter_Johnson]

You need Visual Studio 2022 installed to build for desktop. It looks like you probably have an older version installed (2019?).