請問我想使用Standard PWM Mode功能，當我把pwm的period,duty cycle設定好後，如何指定或選擇4支pwmout的實際pin腳(有關PPS的設定)?

IDE:MPLAB X IDE v5.45 Compiler:XC8 v2.4
build後出現中斷副程式錯誤，如下…請問是語法那裡出問題?
"C:\Program Files\Microchip\xc8\v2.40\bin\xc8-cc.exe" -mcpu=16F15376 -c -mdfp="C:/Program Files/Microchip/MPLABX/v5.45/packs/Microchip/PIC16F1xxxx_DFP/1.5.133/xc8" -fno-short-double -fno-short-float -O0 -fasmfile -maddrqual=ignore -xassembler-with-cpp -mwarn=-3 -Wa,-a -DXPRJ_XC8_PIC16F15376=XC8_PIC16F15376 -msummary=-psect,-class,+mem,-hex,-file -ginhx032 -Wl,--data-init -mno-keep-startup -mno-osccal -mno-resetbits -mno-save-resetbits -mno-download -mno-stackcall -std=c99 -gdwarf-3 -mstack=compiled:auto:auto -o build/XC8_PIC16F15376/production/user.p1 user.c
interrupts.c:23:6: error: variable has incomplete type 'void'
void interrupt isr(void)
^
interrupts.c:23:15: error: expected ';' after top level declarator
void interrupt isr(void)
^
;
2 errors generated.