Expected an assignment or function call and instead saw an expression when defining interface

Issue

Im trying to build a form and start by defining an interface

interface
TokenListProps
{
  readonly
  contractAddress: string;
}

and I get a compile error 'Expected an assignment or function call and instead saw an expression' for this line.

Any suggestions on why this might be?

Solution

Based upon the info you have provided the issue is the newlines in your definitions.

You currently have this:

interface
TokenListProps
{
  readonly
  contractAddress: string;
}

And it should be like this:

interface TokenListProps
{
  readonly contractAddress: string;
}

Answered By - FutureCake