I can't change my text

I tried 2 hours to change my text just to see that unity basically thinks TextMeshPro doesn't exist

here is the script
Text ScoreText = GameObject.Find("Canvas/ScoreText").GetComponent<Text>(); - This detects
ScoreText.text = "Test"; - [Always an error in console log , shows no error when save it]
i tested transform component and worked
but for some reason text component doesn't work and always i get a Null when i do Debug.Log("")

The error is always Object reference not set an instant of an object
There is a fix ? Because i looked at like over 20 forums and i get same error no matter what i do.

 

I finally found a fix in the end the solution was Using TMPro , i am new using unity btw.

 

That should be two seconds, not two hours. Why? Because its ALWAYS the same three steps.

How to fix a NullReferenceException error

https://forum.unity.com/threads/how-to-fix-a-nullreferenceexception-error.1230297/

Three steps to success:
- Identify what is null <-- any other action taken before this step is WASTED TIME
- Identify why it is null
- Fix that