Pwm not work

[Serhii]

Hi everyone. There is a problem with compiling the program with the PWM element. Returns lines:
D:\Projects\TRIMMI~1>"C:\PROGRA~2\Flowcode\Common\COMPIL~1\avr\BATCHF~1\..\bin\avr-gcc.exe" -mmcu=atmega328p -Os -ffunction-sections -fdata-sections -funsigned-char -o "D:\Projects\TRIMMI~1\Flowcode1.elf" "D:\Projects\TRIMMI~1\Flowcode1.c" -lm -Wl,-gc-sections
In file included from C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\includes.c:561,
from D:\Projects\TRIMMI~1\Flowcode1.c:249:
C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\/AVR\AVR_CAL_PWM.c:110:5: warning: #warning "PWM Channel Uses Resource Timer 0"
C:\ProgramData\MatrixTSL\FlowcodeV8\CAL\/AVR\AVR_CAL_PWM.c:495:3: warning: #warning "Period control register not available on target device, period will default to 255 + 1"
What is wrong ?
I use chip ATMega 328p (Arduino UNO and Arduino nano). However, as I read in the file CAL_AVR_PWM this chip is not used in it, but only XMEGA and Tiny. Could that be a problem?

[medelec35]

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Topic is locked to avoid confusion.