compiling main.o issue

[eyad salah]

when I try to compile a main.o file by typing this long command g++ main.o -o sfml-app -L"C:\Users\SALAH AHMAD\Desktop\إياد\sfml folder\SFML-2.6.1\lib" -lsfml-graphics -lsfml-window -lsfml-system
I receive this output main.o:main.cpp:(.text+0x7c): undefined reference to

`_imp___ZN2sf6StringC1EPKcRKSt6locale'
main.o:main.cpp:(.text+0xa2): undefined reference to `_imp___ZN2sf9VideoModeC1Ejjj'
main.o:main.cpp:(.text+0xde): undefined reference to `_imp___ZN2sf12RenderWindowC1ENS_9VideoModeERKNS_6StringEjRKNS_15ContextSettingsE'
main.o:main.cpp:(.text+0x115): undefined reference to `_imp___ZN2sf11CircleShapeC1Efj'
main.o:main.cpp:(.text+0x126): undefined reference to `_imp___ZN2sf5Color5GreenE'
main.o:main.cpp:(.text+0x130): undefined reference to `_imp___ZN2sf5Shape12setFillColorERKNS_5ColorE'
main.o:main.cpp:(.text+0x142): undefined reference to `_imp___ZNK2sf10WindowBase6isOpenEv'
main.o:main.cpp:(.text+0x162): undefined reference to `_imp___ZN2sf10WindowBase9pollEventERNS_5EventE'
main.o:main.cpp:(.text+0x182): undefined reference to `_imp___ZN2sf6Window5closeEv'
main.o:main.cpp:(.text+0x1af): undefined reference to `_imp___ZN2sf5ColorC1Ehhhh'
main.o:main.cpp:(.text+0x1ca): undefined reference to `_imp___ZN2sf12RenderTarget5clearERKNS_5ColorE'
main.o:main.cpp:(.text+0x1dd): undefined reference to `_imp___ZN2sf12RenderStates7DefaultE'
main.o:main.cpp:(.text+0x1f1): undefined reference to `_imp___ZN2sf12RenderTarget4drawERKNS_8DrawableERKNS_12RenderStatesE'
main.o:main.cpp:(.text+0x203): undefined reference to `_imp___ZN2sf6Window7displayEv'
main.o:main.cpp:(.text+0x229): undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
main.o:main.cpp:(.text+0x273): undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
main.o:main.cpp:(.text$_ZN2sf11CircleShapeD1Ev[__ZN2sf11CircleShapeD1Ev]+0xa): undefined reference to `_imp___ZTVN2sf11CircleShapeE'
main.o:main.cpp:(.text$_ZN2sf11CircleShapeD1Ev[__ZN2sf11CircleShapeD1Ev]+0x17): undefined reference to `_imp___ZTVN2sf11CircleShapeE'
main.o:main.cpp:(.text$_ZN2sf11CircleShapeD1Ev[__ZN2sf11CircleShapeD1Ev]+0x2a): undefined reference to `_imp___ZN2sf5ShapeD2Ev'
collect2.exe: error: ld returned 1 exit status

what should I do ?

[eXpl0it3r]

Sounds like your compiler and pre-compiled SFML libraries aren't compatible.
Make sure to use matching compilers or use the SFML CMake Template: https://www.sfml-dev.org/tutorials/2.6/compile-with-cmake.php

Additionally, please spend some time searching the forum and the internet for your problems.
They are not new and you'll find many replies, no need to post any tiny problem you run into.