问缺少rtree的依赖项

EN

Collecting rtree
  Downloading https://files.pythonhosted.org/packages/11/1d/42d6904a436076df813d1df632575529991005b33aa82f169f01750e39e4/Rtree-0.9.3.tar.gz (520kB)
     |████████████████████████████████| 522kB 467kB/s
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\gitte\Anaconda3\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\gitte\\AppData\\Local\\Temp\\pip-install-kmbt5h2t\\rtree\\setup.py'"'"'; __file__='"'"'C:\\Users\\gitte\\AppData\\Local\\Temp\\pip-install-kmbt5h2t\\rtree\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
         cwd: C:\Users\gitte\AppData\Local\Temp\pip-install-kmbt5h2t\rtree\
    Complete output (11 lines):
    Traceback (most recent call last):
      File "", line 1, in 
      File "C:\Users\gitte\AppData\Local\Temp\pip-install-kmbt5h2t\rtree\setup.py", line 3, in 
        import rtree
      File "C:\Users\gitte\AppData\Local\Temp\pip-install-kmbt5h2t\rtree\rtree\__init__.py", line 1, in 
        from .index import Rtree
      File "C:\Users\gitte\AppData\Local\Temp\pip-install-kmbt5h2t\rtree\rtree\index.py", line 6, in 
        from . import core
      File "C:\Users\gitte\AppData\Local\Temp\pip-install-kmbt5h2t\rtree\rtree\core.py", line 128, in 
        raise OSError("could not find or load %s" % lib_name)
    OSError: could not find or load spatialindex_c-64.dll
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.