multiple libraries found error

[RBOSAMIYA9]

I am watching @t04glovern udemy course and trying to make environment sensor, I have used following code but getting error, kindly help me out.
`
#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
#include "main.h"
#include <AWS_IOT.h>

//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager

#include <PubSubClient.h>
#include <ArduinoJson.h> //https://github.com/bblanchon/ArduinoJson (use v6.xx)
#include <time.h>

//for getting all the sensor data

#include <Wire.h>
#include "Adafruit_SGP30.h"
#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>
#include "DHT.h"

//dht pin type and initialization
#define DHTTYPE DHT11 // DHT 11
#define dht_dpin D4
DHT dht(dht_dpin, DHTTYPE);

//initialization of bme and sgp
Adafruit_BMP280 bme; // I2C
Adafruit_SGP30 sgp;

//variables for sensors
float temperature;
float humidity;
float tvoc;
float eco2;
float p = 0.0;
float h2 = 0.0;
float eth = 0.0;
AWS_IOT aws_iot;

void readSensor()
{
if (! sgp.IAQmeasure()) {
Serial.println("Measurement failed");
return;
}
temperature = bme.readTemperature();
humidity = dht.readHumidity();
tvoc = sgp.TVOC;
eco2 = sgp.eCO2;
}

void NTPConnect(void)
{
Serial.print("Setting time using SNTP");
configTime(19800, DST * 3600, "pool.ntp.org", "time.nist.gov");
now = time(nullptr);
while (now < nowish)
{
delay(500);
Serial.print(".");
now = time(nullptr);
}
Serial.println("done!");
struct tm timeinfo;
gmtime_r(&now, &timeinfo);
Serial.print("Current time: ");
Serial.println(asctime(&timeinfo));
// String tm1 = String(1900+timeinfo.tm_year)+":"+String(timeinfo.tm_mon+1)+":"+String(timeinfo.tm_mday)
// + ","+String(timeinfo.tm_hour)+":"+String(timeinfo.tm_min)+":"+String(timeinfo.tm_sec);
// Serial.println("Current time: ");
// Serial.println(tm1);
// Serial.print(timeinfo.tm_sec);
// Serial.print(timeinfo.tm_min);
}

void messageReceived(char *topic, byte *payload, unsigned int length)
{
Serial.print("Received [");
Serial.print(topic);
Serial.print("]: ");
for (int i = 0; i < length; i++)
{
Serial.print((char)payload[i]);
}
Serial.println();
}

void sendDataToServer()
{
struct tm timeinfo;
gmtime_r(&now, &timeinfo);
Serial.print("Current time: ");
Serial.print(asctime(&timeinfo));
//String tm1 = String(asctime(&timeinfo));
String tm1 = String(1900 + timeinfo.tm_year) + ":" + String(timeinfo.tm_mon + 1) + ":" + String(timeinfo.tm_mday)
+ "," + String(timeinfo.tm_hour) + ":" + String(timeinfo.tm_min) + ":" + String(timeinfo.tm_sec);

DynamicJsonDocument jsonBuffer(JSON_OBJECT_SIZE(1) + 200);
JsonObject root = jsonBuffer.to();

// JsonObject state = root.createNestedObject("state");
// JsonObject state_reported = state.createNestedObject("reported");
// state_reported["value"] = random(100);/
root["sensorValue"] = String(temperature);
root["time_stamp"] = String(tm1);
root["humadity_sensor"] = String(humidity);
root["pressure_sensor"] = String(p);
root["ECO2"] = String(eco2);
root["H2"] = String(h2);
root["TVOC"] = String(tvoc);
root["ETH"] = String(eth);

Serial.printf("Sending1 [%s]: ", aws_mqtt_thing_topic_pub);
serializeJson(root, Serial);
Serial.println();
char shadow[measureJson(root) + 1];
serializeJson(root, shadow, sizeof(shadow));
if (client.publish(aws_mqtt_thing_topic_pub, shadow, false))
{
Serial.println("data sent to aws");
Serial.println(shadow);
}
else
Serial.println("data not sent");
}

void setup() {

Serial.begin(115200);
WiFiManager wifiManager;
wifiManager.autoConnect("power8");
Serial.println("connected...with wifi :)");

// for sensors
dht.begin();
if (!bme.begin()) {
Serial.println("Could not find a valid BMP280 sensor, check wiring!");
while (1);
}
if (! sgp.begin()) {
Serial.println("Sensor not found :(");
while (1);
}

if (aws_iot.connect(aws_mqtt_server, aws_mqtt_client_id) == 0)
{
Serial.println("connected to aws");
delay(500);

}
else {
Serial.println("connection failed with aws");
while (1);
}
}
void loop() {
// put your main code here, to run repeatedly:
readSensor();
sendDataToServer();
}

`

contents of main.h is
`
#ifndef MAIN_H

const String thing_id = "env_sensor";

// AWS MQTT Details
char *aws_mqtt_server = "a1eriwaw6byf4f-ats.iot.ap-south-1.amazonaws.com";
char *aws_mqtt_client_id = "env_sensor";
char *aws_mqtt_thing_topic_pub = "env_sensor";

#endif
int8_t TIME_ZONE = +5; //NYC(USA): -5 UTC

`

and i am getting following error
`
In file included from C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT\src\network_interface.h:35:0,
-> candidates: []

Multiple libraries were found for "ESP8266WebServer.h"
from C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT\src\aws_iot_mqtt_client.h:57,

Used: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\ESP8266WebServer
Multiple libraries were found for "WiFiManager.h"
from C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT\src\AWS_IOT.cpp:39:

Used: C:\Users\rb23\Documents\Arduino\libraries\WiFiManager
C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT\src\network_platform.h:20:28: fatal error: mbedtls/config.h: No such file or directory

Not used: C:\Users\rb23\Documents\Arduino\libraries\WhareHauoraWiFiManager
#include "mbedtls/config.h"

Multiple libraries were found for "PubSubClient.h"
^

Used: C:\Users\rb23\Documents\Arduino\libraries\PubSubClient
compilation terminated.

Not used: C:\Users\rb23\Documents\Arduino\libraries\pubsubclient-master
Multiple libraries were found for "Wire.h"
Used: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\Wire
Multiple libraries were found for "Adafruit_SGP30.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_SGP30_Sensor
Multiple libraries were found for "Adafruit_BMP280.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_BMP280_Library
Multiple libraries were found for "SPI.h"
Used: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\SPI
Multiple libraries were found for "ESP8266WiFi.h"
Used: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\ESP8266WiFi
Multiple libraries were found for "AWS_IOT.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT
Multiple libraries were found for "DNSServer.h"
Used: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\DNSServer
Multiple libraries were found for "ArduinoJson.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\ArduinoJson
Multiple libraries were found for "Adafruit_Sensor.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_Sensor-master
Not used: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_Unified_Sensor
Multiple libraries were found for "DHT.h"
Used: C:\Users\rb23\Documents\Arduino\libraries\DHT_sensor_library
Using library ESP8266WiFi at version 1.0 in folder: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\ESP8266WiFi
Using library AWS_IOT at version 1.0 in folder: C:\Users\rb23\Documents\Arduino\libraries\AWS_IOT
Using library DNSServer at version 1.1.1 in folder: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\DNSServer
Using library ESP8266WebServer at version 1.0 in folder: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\ESP8266WebServer
Using library WiFiManager at version 0.15.0-beta in folder: C:\Users\rb23\Documents\Arduino\libraries\WiFiManager
Using library PubSubClient at version 2.6 in folder: C:\Users\rb23\Documents\Arduino\libraries\PubSubClient
Using library ArduinoJson at version 6.13.0 in folder: C:\Users\rb23\Documents\Arduino\libraries\ArduinoJson
Using library Wire at version 1.0 in folder: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\Wire
Using library Adafruit_SGP30_Sensor at version 1.0.5 in folder: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_SGP30_Sensor
Using library Adafruit_Sensor-master at version 1.0.3 in folder: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_Sensor-master
Using library Adafruit_BMP280_Library at version 1.0.5 in folder: C:\Users\rb23\Documents\Arduino\libraries\Adafruit_BMP280_Library
Using library SPI at version 1.0 in folder: C:\Users\rb23\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.1\libraries\SPI
Using library DHT_sensor_library at version 1.3.8 in folder: C:\Users\rb23\Documents\Arduino\libraries\DHT_sensor_library
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).

`