message: sst start: show descriptive message for "Unable to find function"
diff: @@ -285,7 +285,7 @@ module.exports = async function (argv, config, cliInfo) {
  const timeoutAt = Date.now() + req.debugRequestTimeoutInMs;
  const func = funcs.find((f) => f.id === req.functionId);
  if (!func) {
  - console.error("Unable to find function", req.functionId);
  + console.error(`Function "${req.functionId}" could not be found in your app`);
  return {
  type: "failure",
  body: "Failed to find function",
  