string - Error: Can't access 'this' in a field initializer to read

Question

Why I have this error? it seems to me that concatenation between string and Int is correct? See picture. regrads. enter image description here

question from:https://stackoverflow.com/questions/65601214/error-cant-access-this-in-a-field-initializer-to-read

Answer 1

You can only use constant expressions as initializers. x=this.y is not constant.