Help needed with GYBMEP project

hi I am following this project

I have connected everything up as shown in the drawing but when I upload the code and power it up the display reads "error. check connections"
I am unsure where to go from here

I am also using an Arduino UNO not a MEGA

connections are
Arduino 5v--VIN bmp280
Arduino GND--GND bmp280
Arduino A5--SCL bmp280
Arduino A4--SDA bmp280

How are You powering the UNO? Which pin and what voltage?

Are you using the BME280 or the BMP280?
They have different I2C addresses
BME280 is 0x76
BMP280 is 0x77

Change
bme.begin(0x76);
to
bme.begin(0x77);

I am powering the uno through USB

just did a I2C scan and it came up with device found at 0x76 witch the code for the project is already set at and the sensor I am using says BME/BMP280

It can't be both.
So if the scanner found 0x76 then your code should work.
Post you code here so we can see what you are doing.
In the IDE, under the EDIT menu click on Copy for Forum and paste your code here.

#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <LiquidCrystal.h>

float temperature;
float humidity;
float pressure;

#define ALTITUDE 216.0 // Altitude in Sparta, Greece

Adafruit_BME280 bme; // I2C

LiquidCrystal lcd(8,9,4,5,6,7); 

void setup(void) {

  lcd.begin(16, 2);
  lcd.print("Reading sensor");

  bool status;
    
    // default settings
    status = bme.begin(0x76);  //The I2C address of the sensor I use is 0x76
    if (!status) {
        lcd.clear();
        lcd.print("Error. Check");
        lcd.setCursor(0,1);
        lcd.print("connections");
        while (1);
    }
}

void loop() {
  
 delay(2000);

 getPressure();
 getHumidity();
 getTemperature();
 
 lcd.clear(); 
 
 //Printing Temperature
 String temperatureString = String(temperature,1);
 lcd.print("T:"); 
 lcd.print(temperatureString);
 lcd.print((char)223);
 lcd.print("C ");
 
 //Printing Humidity
 String humidityString = String(humidity,0); 
 lcd.print("H: ");
 lcd.print(humidityString);
 lcd.print("%");
 
 //Printing Pressure
 lcd.setCursor(0,1);
 lcd.print("P: ");
 String pressureString = String(pressure,2);
 lcd.print(pressureString);
 lcd.print(" hPa");
}

float getTemperature()
{
  temperature = bme.readTemperature();
}

float getHumidity()
{
  humidity = bme.readHumidity();
}

float getPressure()
{
  pressure = bme.readPressure();
  pressure = bme.seaLevelForAltitude(ALTITUDE,pressure);
  pressure = pressure/100.0F;
}


I can't see anything wrong.
Put a Serial.print("ERROR") in your code where it checks status and comment out the LCD setup lines and prints. Then see if you still get the error

Try the Adafruit bme280test.ino example

Just tried the example and it cant find the sensor either, I'm thinking maybe the sensor is broken

But you said the scanner found it. Is that true?

yeah I ran the ic2 scanner and it said sensor found on 0x76

if I run this sensor test code it only outputs the sensor readings as 0.00

/**************************************************************************
   Tests the getPressure functions
 **************************************************************************/
#include <BMP280.h>
BMP280 bmp280;

void setup()
{
  Serial.begin(9600);
  delay(10);
  Serial.println("BMP280 example");

  Wire.begin(); //Join I2C bus
  bmp280.begin();
}

void loop()
{
  //Get pressure value
  uint32_t pressure = bmp280.getPressure();
  float temperature = bmp280.getTemperature();

  //Print the results
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("°C \t");
  Serial.print("Pressure: ");
  Serial.print(pressure);
  Serial.println("Pa");

  delay(2000);
}

You said you ran the test code and it did NOT find the sensor
You are confusing me

Sorry I meant to say the adafruit test code came up with error check wiring

So I ran a test code from another library for the bme280 and it just outputs

Pressure = 0.00 temperature = 0.00

That code does not check to see if the BMP280 is present so it does not help.

Use the Adafruit test program but set the address to 0x76
bme.begin(0x76);

Did it work?

sorry I haven't had the chance to have another shot at it ill let you know when I do