Error: Invalid multi-line string terraform

Question

I am trying to define a resource but Terraform complains

resource "aws_cloudwatch_event_target" "my-functions-order-machine-completion-target" {
  target_id = "some target id"
  rule      = aws_cloudwatch_event_rule.my-functions-order-machine-completion-rule.name
  arn       = module.lambda["myLambda"].function_arn
}

error:

Quoted strings may not be split over multiple lines. To produce a multi-line
string, either use the \n escape to represent a newline character or use the
"heredoc" multi-line template syntax.

I saw Heredoc Strings but not sure how to use this after "resource"

Answer 1

Same issue at my end, but for me there was syntax error. there was duplicate double quotes. Notice the first line number mentioned in error.