GPT答：

7i24.cn

b.dir/grabImage.cpp.o.d: Permission denied" error message indicates that the compiler does not have permission to create or write to the dependency file for the "grabImage.cpp" source file.

To resolve this issue, you can try the following steps:

1. Check if you have sufficient permissions to write in the directory where your project is located. You may need administrative privileges or change the permissions of that directory.

2. Make sure that no other process is using or locking the dependency file. Close any other programs that might be accessing it.

3. If you are using a version control system like Git, make sure that none of your files are marked as read-only or locked by Git.

4. Clean your build directory and rebuild your project from scratch:
   - Delete all generated files and directories (e.g., "CMakeFiles", "build").
   - Run CMake again to regenerate build files.
   - Build your project using make or another build tool.

If none of these steps work, there might be a more specific issue with your environment or configuration settings. In such cases, providing more details about your development environment and CMake configuration could help in finding a solution tailored to your situation.