Why am I getting a 502 error when running yarn dev?

[Dugen]

yarn run v1.22.19
warning ../../../package.json: No license field
$ shopify app dev
╭─ error ─────────────────────────────────────────────────────────────────────────────────────────────╮
│                                                                                                     │
│  The introspection endpoint returned a 502: https://accounts.shopify.com/oauth/introspection        │
│                                                                                                     │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────╯

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Has anyone been having issues? All of my dev apps have been doing this; I even created a new app from scratch and still get this error. Is this a me problem, or a Shopify problem.

This is just running yarn dev.

[Dugen · Accepted solution]

It looks like some posted a similar post around the same time I did.

Do shopify auth logout and run the commands to run dev again.

[Dugen · Accepted solution]

It looks like some posted a similar post around the same time I did.

Do shopify auth logout and run the commands to run dev again.

[nicholasolsen]

Im still having this issue

[Dugen]

Did you have to sign in again after doing this command?

shopify auth logout

[ZoeM_]

Have you try:

npm run shopify auth logout

and 

npm run dev

[ZoeM_]

I still got the issue after I tried this solution

[rkaiser · Accepted solution]

Yeah, I was having this issue until I tried the last reply: 

npm run shopify auth logout

and 

npm run dev