Arduino for STM32

Hello!
I just started with arduino and STM. After installation of Arduino IDE I downloaded files from github Arduino_STM32_Master and added it to hardware in arduino folder. I found my maple mini clone but when i start compiling my program even blank i get error like this:
Arduino:1.8.13 (Windows 10), Płytka:"Maple Mini, Original (17k RAM,108k Flash), 48MHz (Slow - with USB), Smallest (default)"

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Marta\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Marta\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Marta\Documents\Arduino\libraries -fqbn=Arduino_STM32-master:STM32F1:mapleMini:bootloader_version=original,cpu_speed=speed_48mhz,opt=osstd -vid-pid=1EAF_0004 -ide-version=10813 -build-path C:\Users\Marta\AppData\Local\Temp\arduino_build_829720 -warnings=none -build-cache C:\Users\Marta\AppData\Local\Temp\arduino_cache_131597 -prefs=build.warn_data_percentage=75 -verbose C:\Users\Marta\AppData\Local\Temp\untitled885176810.tmp\sketch_may05a\sketch_may05a.ino

loading hardware from C:\Users\Marta\AppData\Local\Arduino15\packages: loading package arduino: invalid version dir C:\Users\Marta\AppData\Local\Arduino15\packages\arduino\hardware\Arduino_STM32-master\tools: no major version found



Error for compiling board Maple Mini.
Please help me!

Installing directly from Github is only recommended for advanced users.

See https://github.com/stm32duino/wiki/wiki/Getting-Started and follow the steps as listed. When finished, you should have a working installation.

Thanks! Actually i solved my problem by checking arduino forum. One of my files was in folder so the path was too long for Arduino IDE.