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Version 2.35.0 Error "Configuration for rule "flowtype/require-return-type" is invalid Value "never" must be an enum value." #253

ramusus opened this issue Jul 11, 2017 · 5 comments


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ramusus commented Jul 11, 2017

After update from 2.33.0 to 2.35.0 I started to get this error:

Error: /Users/shifrinb2/workspace/commons/.eslintrc.yml:
        Configuration for rule "flowtype/require-return-type" is invalid:
        Value "never" must be an enum value.

My .eslintrc.yml:

flowtype/require-return-type: [error, never, {annotateUndefined: never}]

Before this setting works just fine

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milesj commented Jul 13, 2017

Same issue here.

This causes a failure:

"flowtype/require-return-type": [2, {
  "excludeArrowFunctions": "expressionsOnly",

While this does not:

"flowtype/require-return-type": 2,

After looking at the source, it seems like any rule that accepts an object OR a string as the 2nd argument will fail.

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milesj commented Sep 4, 2017

No update on this yet?

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ramusus commented Nov 15, 2017

any updates?

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gajus commented Nov 15, 2017

Simple to fix. PR is welcome.

@gajus gajus closed this as completed in aca8583 May 18, 2020
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gajus commented May 26, 2020

🎉 This issue has been resolved in version 5.1.1 🎉

The release is available on:

Your semantic-release bot 📦🚀

@gajus gajus added the released label May 26, 2020
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