Pyinstaller and rtree troubles on Windows 10

[timurkanaz]

Hello everyone! I am trying to generate .exe with the help of pyinstaller. However, when I try to run my executable file it generates an error :

in exec_module
      exec(bytecode,module.__dict__)
File "rtree\core.py",line 126, in <module>
OSError: could not find or load spatialindex_c.dll
[16436] Failed to execute script main

I made installation via .spec file. If someone can help or have an idea , I can share my code and spec file!

Thanks for response!