TypeError: environment.teardown is not a function

[acanimal]

Hi, I'm using jest on a node project and TypeError: environment.teardown is not a function appears appear after upgrading from jest@24.9.0 to jest@26.1.0 (yarn)

I search and found this #6393 but none of the solutions (like deleting yarn.lock, node_modules, yarn and reinstalling everyting) works for me.

After some tries it seems like the jest-environment-node package is not installed. Once manually installed all seems to work again.

Is this the right solution? Any help?

[hyochan]

We've managed to fix this by installing jest-environment-node explicitly. Thanks @acanimal .

[SimenB]

You don't have to explicitly install it although it's a good practice so you don't have to rely on hoisting - you probably have some config (preset?) with a dep on an older version or some such.

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This issue does not follow the issue template asking for a minimal reproduction, so closing

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