Qt 5环境配置疑问：CMake与调试器缺失问题求助

Hey there! I’ve dealt with this exact issue when setting up Qt 5.10 Community Edition before—let’s break down what’s likely going on and how to resolve it.

Qt’s installer doesn’t enable all developer tools by default, which is probably why you’re missing CMake and debuggers. Here’s how to fix that:

• Relaunch the Qt Installer, select the Modify option for your existing Qt 5.10 installation.
• Expand the compiler kit you’re using (e.g., MinGW 5.3.0 32-bit or MSVC 2017 64-bit), and make sure the Debug Tools sub-component is checked (this includes the debugger for that kit).
• Navigate to the Developer and Designer Tools category, find the CMake entry, and ensure it’s selected.
• Click Apply to install the missing components.

Sometimes Qt Creator fails to auto-detect tools even after installation. Here’s how to add them manually:

Adding a debugger #

• Open Qt Creator, go to Tools > Options > Kits > Debuggers.
• Click the Add button, then browse to the debugger executable:
  • For MinGW on Windows: Look in Qt\5.10.0\mingw53_32\bin\gdb.exe (adjust the path to match your kit’s architecture).
  • For MSVC on Windows: Find it in C:\Program Files (x86)\Windows Kits\10\Debuggers\x64\cdb.exe (or the corresponding path for your Windows SDK version).
  • On Linux: Use /usr/bin/gdb.
  • On macOS: Use /usr/bin/lldb.
• Name the debugger something recognizable (e.g., "MinGW 5.3 GDB") and click OK.

Adding CMake #

• Go to Tools > Options > Build & Run > CMake.
• Click Add, then navigate to the CMake executable:
  • On Windows: It’s usually in Qt\Tools\CMake\bin\cmake.exe.
  • On Linux/macOS: Check the Qt/Tools/CMake/bin directory under your Qt installation path.
• Name it (e.g., "Qt CMake 3.x") and save.

Finally, make sure your active kit is using the tools you just added:

• Go to Tools > Options > Kits > Kits.
• Select the kit you want to use (e.g., "Desktop Qt 5.10.0 MinGW 32-bit").
• In the Debugger dropdown, pick the debugger you added earlier.
• For CMake projects, when you set up a new project, Qt Creator will use the CMake you configured—you can confirm this in the project’s Build Settings tab.

内容的提问来源于stack exchange，提问作者Raji Birru