Explanation: You can only access fields on records, like this:


    ┌─────────────────────────────────┐
    │ { foo = True, bar = "ABC" }.foo │  This is valid ...
    └─────────────────────────────────┘


    ┌───────────────────────────────────────────┐
    │ λ(r : { foo : Bool, bar : Text }) → r.foo │  ... and so is this
    └───────────────────────────────────────────┘


... but you cannot access fields on non-record expressions

For example, the following expression is $_NOT valid:


    ┌───────┐
    │ 1.foo │
    └───────┘
      ⇧
      Invalid: Not a record


You tried to access a field named:

↳ $txt0

... on the following expression which is not a record:

↳ $txt1

... but is actually an expression of type:

↳ $txt2

Some common reasons why you might get this error:

● You accidentally try to access a field of a union instead of a record, like
  this:


    ┌─────────────────┐
    │ < foo : a >.foo │
    └─────────────────┘
      ⇧
      This is a union, not a record