Qt Creator中Qmake崩溃求助（MSVC 2015、Qt 5.8环境）

Hey there! Let’s work through this Qmake crash issue together—switching compilers in Qt can be tricky when you’re just starting out, so I’ll walk you through some common fixes that often resolve this kind of problem.

Common Fixes to Try #

1. Double-Check Qt & MSVC Version Compatibility #

Make sure you installed the Qt 5.8 build specifically for MSVC 2015 (either 32-bit or 64-bit, matching your Visual Studio setup). It’s easy to accidentally pick the wrong compiler variant when downloading Qt—if you installed the MinGW build of Qt 5.8, that won’t work with MSVC tools.

2. Launch Qt Creator from VS 2015 Developer Command Prompt #

Sometimes Qt Creator fails to load the correct environment variables for MSVC. Here’s how to fix that:

• Open the Developer Command Prompt for Visual Studio 2015 (you’ll find this in the Start Menu under Visual Studio 2015’s folder)
• Navigate to your Qt Creator executable path (usually something like C:\Qt\Qt5.8.0\Tools\QtCreator\bin)
• Run qtcreator.exe from this command prompt. This ensures Qt Creator inherits all the necessary MSVC build environment variables.

3. Validate Your Kit Configuration #

Head to Tools > Options > Build & Run > Kits and select your MSVC kit. Verify these details:

• Compiler: Should show Microsoft Visual C++ Compiler 14.0 (amd64) or x86, depending on your setup
• Debugger: Should be set to Windows Debugger (matching your architecture)
• Qt Version: Must be the MSVC 2015 variant (e.g., Qt 5.8.0 MSVC2015 64bit)
• Ensure none of the paths (Qt install, VS install, project folder) contain Chinese characters or special symbols like !@#$—these can break toolchain detection.

4. Clean Old Build Artifacts #

Old MinGW build files can interfere with MSVC builds. Delete your project’s entire build directory (not the source files!) then re-open the project in Qt Creator, select your MSVC kit, and try running Qmake again.

5. Check Detailed Qmake Logs #

To get more insight into why Qmake is crashing, enable detailed build output:

• Go to Tools > Options > Build & Run > General
• Set Build verbosity to Detailed
• Trigger Qmake again and check the Compile Output and General Messages panels. Look for error messages about missing tools, invalid paths, or corrupted Qt files—this will help narrow down the issue.

6. Repair Your Visual Studio 2015 Installation #

It’s possible some critical MSVC components are missing or corrupted:

• Open the Visual Studio 2015 installer and select Modify
• Ensure Programming Languages > Visual C++ > Common Tools for Visual C++ 2015 is checked, along with all Windows SDK 2015 components that match your installed WDK/WinSDK version.

If none of these steps work, share the detailed error logs from Qt Creator (or key details from your screenshots) and we can dig deeper!

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