Visual Studio 2017因PDB文件‘缺失’重复构建全部项目求助

Hey there, let’s dig into this super frustrating issue where VS2017 keeps rebuilding your entire solution every time you run the project—total productivity killer! I’ve tackled similar problems before, so here are some targeted fixes to try beyond just adjusting basic build settings:

1. Fix Mismatched File Timestamps #

• Sometimes files end up with future timestamps (from timezone mismatches, bad cloud sync, or system clock issues), which VS interprets as "modified since last build." Use the dir /tc command in Command Prompt (navigate to your solution folder) to check creation timestamps. If any files show a future date, manually adjust them to the current time.
• For C# projects, open your .csproj file and check for incorrect LastGenOutput or GeneratedFile entries pointing to non-existent files—VS will try to regenerate these every build, triggering a full rebuild. For C++ projects, inspect .vcxproj files for similar misconfigured generated file paths.

2. Audit Custom Build Steps & Dependencies #

• Head to your project properties > Build Events (or Custom Build Steps for C++). Look for scripts or commands that modify project files (like headers, resources, or configs) on every build—even a tiny change will force a rebuild.
• For C++ projects: Verify your Additional Include Directories don’t point to constantly changing folders (like temp directories). Also, double-check precompiled header (PCH) settings—misconfigured PCHs are a common culprit for unnecessary rebuilds.
• For all project types: Right-click your solution > Project Dependencies to ensure there are no circular dependencies or incorrect links that force projects to rebuild when they shouldn’t.

3. Reset VS Build Cache & Settings #

• Close VS, then delete the hidden .vs folder in your solution directory. This folder stores VS’s build cache and user-specific settings; deleting it will force VS to recreate fresh cache files next time you open the solution.
• Try resetting VS settings to default: Go to Tools > Import and Export Settings > Reset all settings. Corrupted user settings can cause odd build behavior that’s hard to trace.

4. Rule Out Extension Conflicts #

• Disable all third-party VS extensions (especially build-related tools like code analyzers, deployment helpers, or template generators). Restart VS and test the build. If the issue stops, re-enable extensions one by one to find which one is causing the conflict.

5. Validate Solution Configuration #

• Ensure all projects in your solution are set to the same Configuration (Debug/Release) and Platform (x86/x64). Mismatches can make VS rebuild projects to align with the active solution settings.
• Check the Build tab in solution properties—make sure only the necessary projects are set to build for your active configuration. Sometimes accidental settings here can trigger full builds.

If none of these steps resolve the issue, it’d help to know more details like your project type (C#, C++, etc.), whether you’re using custom build scripts, and any recent changes you made to the solution before the problem started.

内容的提问来源于stack exchange，提问作者TechSavvySam