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The solution to this error message could vary depending on the specific context in which it occurs. However, some general solutions to consider include:

1. Check if all the necessary dependencies are installed. Make sure that all the required packages are installed and up to date, and that there are no conflicts between packages.

2. Upgrade pip. Try upgrading pip to the latest version before attempting to install hdbscan.

3. Install missing system dependencies. There might be some missing system dependencies that are needed to build the wheel. Look for any error messages related to missing dependencies and install them using your system package manager.

4. Use a conda environment. Create a new conda environment and try installing hdbscan in that.

5. Use a pre-built wheel. Instead of building the wheel, try installing the pre-built binary wheel for your platform.

6. Check compatibility. Make sure the version of hdbscan is compatible with the version of Python and other packages being used.

7. Consult the documentation. Check the documentation of hdbscan or the forum to see whether others have encountered similar issues and how they resolved them.