flutter_stripe example app has 18 errors all "Object is of type 'unknown'." for 'error' variables

Question

I'm trying to run flutter_stripe's example app. I forked and cloned the Github repository to my laptop.

Starting the yarn server results in 18 errors. All start with Object is of type 'unknown'. All are error or e or err, on lines 130, 301, 442, 450, 451, 455, 456, 464, 578, 586, 587, 591, 592, 595, 599, and 600. Then it says Command failed with exit code 2.

Is this a null safety issue? How do I fix it?

Answer 1

Your existing github issue with the library maintainers is likely to be your best source of help, however reading that I noticed you said:

In the last step, setting up server/.env, my Stripe account has pk_test and a pk_live Publishable and Secret Keys. My guess is that I should use the pk_test keys in server/.env.example. Let’s make this clear in the comment at the top of server/.env.example.

This seems to be a misunderstanding of your Stripe API keys. There are secret keys (sk_) for your server and publishable keys (pk_) for your client-side application as a matching pair, and there is a pair for each of live and test mode. You need to use a matching secret and publishable key from your dashboard.

Additionally, when setting up secrets in environment files, you'll typically be creating a .env file in the server/repo root directory. I read the above as though you might be trying to set up your keys in the .env.example file which I don't expect would work. You should check with the developer of the library/example about this if .env doesn't work.