Yarn is not installed all of the sudden

Pages is saying yarn is not installed all of the sudden. My pipeline use to pass and work perfectly.

|16:50:21.795|> yarn workspaces run postinstall && patch-package|
|---|---|
|16:50:21.795||
|16:50:21.805|sh: 1: yarn: not found|

Have you tried running it again to see if it was a one time thing?

I have the same issue and yes I did try running it multiple times. All new pull requests fail too. Contacted Cloudflare support. waiting for reply.

You might have better luck getting a response on the Discord. The Workers team is pretty active there. Blog Post and Invite