Im not sure what I am doing wrong my project is a scale

Hello im building a scale and Im following a guide http://www.mschoeffler.de/2017/12/04/arduino-tutorial-hx711-load-cell-amplifier-weight-sensor-module-lcm1602-iic-v1-lcd/
I have purchase the things listed in the projekt and connected it and used his source code:

    // (c) Michael Schoeffler 2017, http://www.mschoeffler.de
    #include <HX711_ADC.h> // https://github.com/olkal/HX711_ADC
    #include <Wire.h>
    #include <LiquidCrystal_I2C.h> // LiquidCrystal_I2C library
    HX711_ADC LoadCell(4, 5); // parameters: dt pin, sck pin<span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span>
    LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // 0x27 is the i2c address of the LCM1602 IIC v1 module (might differ)
    void setup() {
      LoadCell.begin(); // start connection to HX711
      LoadCell.start(2000); // load cells gets 2000ms of time to stabilize
      LoadCell.setCalFactor(999.0); // calibration factor for load cell => strongly dependent on your individual setup
      lcd.begin(16, 2); // begins connection to the LCD module
      lcd.backlight(); // turns on the backlight
    }
    void loop() {
      LoadCell.update(); // retrieves data from the load cell
      float i = LoadCell.getData(); // get output value
      lcd.setCursor(0, 0); // set cursor to first row
      lcd.print("Weight[g]:"); // print out to LCD
      lcd.setCursor(0, 1); // set cursor to secon row
      lcd.print(i); // print out the retrieved value to the second row
    }

And I get the error Arduino:1.8.9 (Windows Store 1.8.21.0) (Windows 10), Kort:“Arduino/Genuino Uno”

sketch_SCALE_GUY:6:57: error: ‘POSITIVE’ was not declared in this scope

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // 0x27 is the i2c address of the LCM1602 IIC v1 module (might differ)

^

exit status 1
‘POSITIVE’ was not declared in this scope

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences."

and as he said in the guide “// 0x27 is the i2c address of the LCM1602 IIC v1 module (might differ)” so I downloaded I2CScanner
and as I understand I am only suppost to get 1 “hit” when using this but I get 2

I2CScanner ready!
starting scanning of I2C bus from 8 to 200...
ADD: 8       
ADD: 9       ADD: A       ADD: B       ADD: C       
ADD: D       ADD: E       ADD: F       ADD: 10       
ADD: 11       ADD: 12       ADD: 13       ADD: 14       
ADD: 15       ADD: 16       ADD: 17       ADD: 18       
ADD: 19       ADD: 1A       ADD: 1B       ADD: 1C       
ADD: 1D       ADD: 1E       ADD: 1F       ADD: 20       
ADD: 21       ADD: 22       ADD: 23       ADD: 24       
ADD: 25       ADD: 26       ADD: 27 found! ADD: 28       
ADD: 29       ADD: 2A       ADD: 2B       ADD: 2C       
ADD: 2D       ADD: 2E       ADD: 2F       ADD: 30       
ADD: 31       ADD: 32       ADD: 33       ADD: 34       
ADD: 35       ADD: 36       ADD: 37       ADD: 38       
ADD: 39       ADD: 3A       ADD: 3B       ADD: 3C       
ADD: 3D       ADD: 3E       ADD: 3F       ADD: 40       
ADD: 41       ADD: 42       ADD: 43       ADD: 44       
ADD: 45       ADD: 46       ADD: 47       ADD: 48       
ADD: 49       ADD: 4A       ADD: 4B       ADD: 4C       
ADD: 4D       ADD: 4E       ADD: 4F       ADD: 50       
ADD: 51       ADD: 52       ADD: 53       ADD: 54       
ADD: 55       ADD: 56       ADD: 57       ADD: 58       
ADD: 59       ADD: 5A       ADD: 5B       ADD: 5C       
ADD: 5D       ADD: 5E       ADD: 5F       ADD: 60       
ADD: 61       ADD: 62       ADD: 63       ADD: 64       
ADD: 65       ADD: 66       ADD: 67       ADD: 68       
ADD: 69       ADD: 6A       ADD: 6B       ADD: 6C       
ADD: 6D       ADD: 6E       ADD: 6F       ADD: 70       
ADD: 71       ADD: 72       ADD: 73       ADD: 74       
ADD: 75       ADD: 76       ADD: 77       ADD: 78       
ADD: 79       ADD: 7A       ADD: 7B       ADD: 7C       
ADD: 7D       ADD: 7E       ADD: 7F       ADD: 80       
ADD: 81       ADD: 82       ADD: 83       ADD: 84       
ADD: 85       ADD: 86       ADD: 87       ADD: 88       
ADD: 89       ADD: 8A       ADD: 8B       ADD: 8C       
ADD: 8D       ADD: 8E       ADD: 8F       ADD: 90       
ADD: 91       ADD: 92       ADD: 93       ADD: 94       
ADD: 95       ADD: 96       ADD: 97       ADD: 98       
ADD: 99       ADD: 9A       ADD: 9B       ADD: 9C       
ADD: 9D       ADD: 9E       ADD: 9F       ADD: A0       
ADD: A1       ADD: A2       ADD: A3       ADD: A4       
ADD: A5       ADD: A6       ADD: A7 found! ADD: A8       
ADD: A9       ADD: AA       ADD: AB       ADD: AC       
ADD: AD       ADD: AE       ADD: AF       ADD: B0       
ADD: B1       ADD: B2       ADD: B3       ADD: B4       
ADD: B5       ADD: B6       ADD: B7       ADD: B8       
ADD: B9       ADD: BA       ADD: BB       ADD: BC       
ADD: BD       ADD: BE       ADD: BF       ADD: C0       
ADD: C1       ADD: C2       ADD: C3       ADD: C4       
ADD: C5       ADD: C6       ADD: C7       ADD: C8

Am I suppost to use both A7 and 27?

I hope I have been clear with my post and thank you for taking your time reading this post!

Jamba92: ``` sketch_SCALE_GUY:6:57: error: 'POSITIVE' was not declared in this scope

    LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // 0x27 is the i2c address of the LCM1602 IIC v1 module (might differ)

There are multiple Arduino libraries that contain a file named LiquidCrystal_I2C.h. These libraries have different APIs. The library you happened to install is not the same as the one the author of that code was using, thus the error. Unfortunately, the author of the code was not kind enough to document which libraries they used. So you'll need to go on a scavenger hunt through the Internet to find the right library. Make sure to remove the incorrect library when you install the correct library.

The only liquidcrystal_i2c library I have seen that allows ten parameters in the instantiation could be one of these: https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads/. POSITIVE would be the backlight polarity.

@OP: you should be able to use just about any type of display, and most of the other LCD libraries should work as well. That library can use standard parallel I/O LCDs, as well as I2C types.

Consider asking about the library download location on Michael Schoeffler's project page: http://www.mschoeffler.de/2017/12/04/arduino-tutorial-hx711-load-cell-amplifier-weight-sensor-module-lcm1602-iic-v1-lcd/

Thank you so much for your help! I will ask on his page and try the different links you sent! thank you for your guidance!