Visual Studio 2022 - Intermittent Build Failures When Using Pre-Build Events in C++ Project
Hey everyone, I'm running into an issue that's driving me crazy... I'm experiencing intermittent build failures in my C++ project in Visual Studio 2022 when using pre-build events. The pre-build event is supposed to run a batch script that sets up some environment variables needed for the build, but occasionally, I get the following behavior message during the build process: ``` 1>------ Build started: Project: MyProject, Configuration: Debug x64 ------ 1>Running Pre-Build Event... 1>The command "call C:\Scripts\setup_env.bat" exited with code 1. 1>Build failed. ``` The script itself is quite straightforward: ```batch @echo off set MY_VAR=value exit /b 0 ``` I've verified that the script can run successfully outside of Visual Studio, and it exits with code 0 as expected. I've also checked the build log, but there's no additional information on why the exit code is 1. Sometimes when I clean and rebuild the solution, the behavior goes away, but it keeps coming back, which makes it hard to pinpoint the scenario. To troubleshoot, I've tried the following steps: - **Run the script manually:** I ran the pre-build script directly from the command line, and it worked fine each time. - **Add logging to the script:** I modified the batch script to log output to a file, but it doesn't seem to capture any errors when invoked from Visual Studio. ```batch @echo off set MY_VAR=value echo %MY_VAR% > C:\Scripts\log.txt exit /b 0 ``` - **Change the working directory:** I set the working directory for the pre-build event to ensure it matches the project directory, but this didn't help. Is there any known scenario with Visual Studio 2022 regarding pre-build events in C++ projects that could lead to this kind of intermittent failure? Any suggestions would be greatly appreciated, as it's quite disruptive to my workflow. I'm working on a CLI tool that needs to handle this.