SDK • pico2040 cannot find I2C_NUM()

Code:

 error: 'I2C_NUM' was not declared in this scope 1038 |     DEBUG_PRINTF("# USE_PICO: %d setup: gp%d,gp%d on core_%d \n",I2C_NUM(i2c_bus),SDA_PIN,SCL_PIN,get_core_num ());

Code:

    #include <stdint.h>     #include <cstring>    // memset ?  #define USE_PICO true   #if (USE_PICO)    #define USE_SDK true    #if (USE_SDK)      typedef  uint64_ttimestamp_t ;      #define delay(x)  sleep_ms(x)       #define micros() time_us_64()               #include "hardware/i2c.h"  // find I2C_NUM ?      #include <pico/stdlib.h>      #include <pico/printf.h>      #include <pico/float.h>      // #include <pico/stdio_uart.h> // "stdio_uart_init is not supported or needed.": pulling in RP2040 philhowler.       // #include <pico/divider.h> // should be in pico/stdlib ; arduino build can't find : pulling in RP2040 philhowler.       // #include <pico/malloc.h> // included by pico/stdlib      #include "hardware/timer.h" // timestamp fns      #include "hardware/pwm.h" // for servos      #include "hardware/clocks.h"  // sdk 2.0 , moved get_clk_hz() et al       #include "hardware/structs/clocks.h" // why? sys_clk?       

Code:

 cd $PICO_SDK_PATH grep -iRn "I2C_NUM" *lib/btstack/port/esp32/components/btstack/es8388.h:230:    .i2c_port_num = I2C_NUM_0, \