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expanded on No Router Instance #21248

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merged 6 commits into from Jan 26, 2021
Merged

expanded on No Router Instance #21248

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expanded on No Router Instance
Robogeek95 Jan 17, 2021
c1c5a50
Fixed typo
Robogeek95 Jan 23, 2021
6c7d23f
Update no-router-instance.md
timneutkens Jan 24, 2021
fe739b1
Update no-router-instance.md
timneutkens Jan 24, 2021
faafaa6
Merge branch 'canary' of github.com:vercel/next.js into Robogeek95-pa…
timneutkens Jan 26, 2021
b0b4db1
Merge branch 'canary' into patch-2
kodiakhq[bot] Jan 26, 2021
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8 changes: 6 additions & 2 deletions errors/no-router-instance.md
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#### Why This Error Occurred

During SSR you might have tried to access a router method `push`, `replace`, `back`, which is not supported.
During Pre-rendering (SSR or SSG) you tried to access a router method `push`, `replace`, `back`, which is not supported.

#### Possible Ways to Fix It

Move any calls to router methods to `componentDidMount` or add a check such as `typeof window !== 'undefined'` before calling the methods
In a function Component you can move the code into the `useEffect` hook.

In a class Component, move any calls to router methods to the `componentDidMount` lifecycle method.

This way the calls to the router methods are only executed in the browser.