Arduino: 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Board: "ATtiny24/44/84, ATtiny44, External 20 MHz"

c:\users\dell\documents\arduinodata\packages\arduino\tools\avr-gcc\4.9.2-atmel3.5.4-arduino2\bin\../lib/gcc/avr/4.9.2/../../../../avr/bin/ar.exe: unable to rename 'core\core.a'; reason: File exists

exit status 1
Error compiling for board ATtiny24/44/84.

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