[Bug]: Unknown option: .assumptions. #13452

rhoehener · 2021-06-10T19:17:27Z

💻

Would you like to work on a fix?

How are you using Babel?

with Expo

Input code

expo init (choose a bare template)
edit babel.config.js: add assumptions
expo start
try to open app with expo go

Configuration file name

babel.config.js

Configuration

module.exports = function(api) {
  api.cache(true);
  return {
    presets: ['babel-preset-expo'],
    assumptions: {
    },
  };
};

Current and expected behavior

error when running expo start -c

Failed building JavaScript bundle.
node_modules\expo\AppEntry.js: Unknown option: .assumptions. Check out https://babeljs.io/docs/en/babel-core/#options for more information about options.

Environment

  System:
    OS: Windows 10 10.0.19041
  Binaries:
    Node: 16.3.0 - C:\Program Files\nodejs\node.EXE
    npm: 7.16.0 - C:\Program Files\nodejs\npm.CMD
  npmPackages:
    @babel/core: ^7.9.0 => 7.14.5
    react-native: https://github.com/expo/react-native/archive/sdk-41.0.0.tar.gz => 0.63.2

Possible solution

No response

Additional context

Tried to follow https://babeljs.io/docs/en/babel-plugin-proposal-decorators

It says:

When using the legacy: true mode, the setPublicClassFields assumption must be enabled to support the @babel/plugin-proposal-decorators.

The text was updated successfully, but these errors were encountered:

babel-bot · 2021-06-10T19:17:42Z

Hey @rhoehener! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack community that typically always has someone willing to help. You can sign-up here for an invite."

JLHwung · 2021-06-10T19:23:35Z

Do you have multiple @babel/core in node_modules? What is the output of npm ls @babel/core?

rhoehener · 2021-06-10T19:29:05Z

I only see one such folder.

+-- @babel/core@7.14.5
| `-- @babel/helper-compilation-targets@7.14.5
|   `-- @babel/core@7.14.5 deduped
+-- expo@41.0.1
| +-- @expo/metro-config@0.1.72
| | `-- @expo/config@4.0.2
| |   +-- @babel/core@7.9.0
| |   `-- @babel/preset-typescript@7.12.17
| |     `-- @babel/core@7.14.5 deduped
| +-- babel-preset-expo@8.3.0
| | +-- @babel/plugin-proposal-decorators@7.14.5
| | | +-- @babel/core@7.14.5 deduped
| | | +-- @babel/helper-create-class-features-plugin@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | `-- @babel/plugin-syntax-decorators@7.14.5
| | |   `-- @babel/core@7.14.5 deduped
| | +-- @babel/preset-env@7.12.17
| | | +-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-async-generator-functions@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-dynamic-import@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-export-namespace-from@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-json-strings@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-logical-assignment-operators@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-numeric-separator@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-object-rest-spread@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-optional-catch-binding@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-private-methods@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-proposal-unicode-property-regex@7.14.5
| | | | +-- @babel/core@7.14.5 deduped
| | | | `-- @babel/helper-create-regexp-features-plugin@7.14.5
| | | |   `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-async-generators@7.8.4
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-class-properties@7.12.13
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-dynamic-import@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-export-namespace-from@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-json-strings@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-logical-assignment-operators@7.10.4
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-nullish-coalescing-operator@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-numeric-separator@7.10.4
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-object-rest-spread@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-optional-catch-binding@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-optional-chaining@7.8.3
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-syntax-top-level-await@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-arrow-functions@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-async-to-generator@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-block-scoped-functions@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-block-scoping@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-classes@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-computed-properties@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-destructuring@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-dotall-regex@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-duplicate-keys@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-exponentiation-operator@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-for-of@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-function-name@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-literals@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-member-expression-literals@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-modules-amd@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-modules-systemjs@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-modules-umd@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-named-capturing-groups-regex@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-new-target@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-object-super@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-parameters@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-property-literals@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-regenerator@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-reserved-words@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-shorthand-properties@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-spread@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-sticky-regex@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-template-literals@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-typeof-symbol@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-unicode-escapes@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | +-- @babel/plugin-transform-unicode-regex@7.14.5
| | | | `-- @babel/core@7.14.5 deduped
| | | `-- @babel/preset-modules@0.1.4
| | |   `-- @babel/core@7.14.5 deduped
| | `-- metro-react-native-babel-preset@0.59.0
| |   +-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-proposal-export-default-from@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-syntax-export-default-from@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-syntax-flow@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-object-assign@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-react-display-name@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-react-jsx-self@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-react-jsx-source@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-react-jsx@7.14.5
| |   | `-- @babel/core@7.14.5 deduped
| |   +-- @babel/plugin-transform-runtime@7.14.5
| |   | +-- @babel/core@7.14.5 deduped
| |   | +-- babel-plugin-polyfill-corejs2@0.2.2
| |   | | +-- @babel/core@7.14.5 deduped
| |   | | `-- @babel/helper-define-polyfill-provider@0.2.3
| |   | |   `-- @babel/core@7.14.5 deduped
| |   | +-- babel-plugin-polyfill-corejs3@0.2.2
| |   | | `-- @babel/core@7.14.5 deduped
| |   | `-- babel-plugin-polyfill-regenerator@0.2.2
| |   |   `-- @babel/core@7.14.5 deduped
| |   `-- @babel/plugin-transform-typescript@7.14.5
| |     +-- @babel/core@7.14.5 deduped
| |     `-- @babel/plugin-syntax-typescript@7.14.5
| |       `-- @babel/core@7.14.5 deduped
| `-- expo-constants@10.1.3
|   `-- @expo/config@3.3.43
|     `-- @babel/core@7.9.0
`-- react-native@0.63.2
  +-- @react-native-community/cli@4.14.0
  | `-- metro@0.59.0
  |   +-- @babel/core@7.14.5 deduped
  |   `-- @babel/plugin-external-helpers@7.14.5
  |     `-- @babel/core@7.14.5 deduped
  +-- fbjs-scripts@1.2.0
  | +-- @babel/core@7.14.5 deduped
  | `-- babel-preset-fbjs@3.4.0
  |   +-- @babel/core@7.14.5 deduped
  |   `-- @babel/plugin-syntax-jsx@7.14.5
  |     `-- @babel/core@7.14.5 deduped
  +-- metro-babel-register@0.59.0
  | +-- @babel/core@7.14.5 deduped
  | +-- @babel/plugin-proposal-class-properties@7.12.13
  | | `-- @babel/core@7.14.5 deduped
  | +-- @babel/plugin-proposal-nullish-coalescing-operator@7.14.5
  | | `-- @babel/core@7.14.5 deduped
  | +-- @babel/plugin-proposal-optional-chaining@7.14.5
  | | `-- @babel/core@7.14.5 deduped
  | +-- @babel/plugin-transform-flow-strip-types@7.14.5
  | | `-- @babel/core@7.14.5 deduped
  | +-- @babel/plugin-transform-modules-commonjs@7.14.5
  | | `-- @babel/core@7.14.5 deduped
  | `-- @babel/register@7.14.5
  |   `-- @babel/core@7.14.5 deduped
  `-- metro-react-native-babel-transformer@0.59.0
    +-- @babel/core@7.14.5 deduped
    `-- metro-babel-transformer@0.59.0
      `-- @babel/core@7.14.5 deduped

rhoehener · 2021-06-10T19:41:14Z

testproject.zip

JLHwung · 2021-06-10T19:51:12Z

As you can see, the @expo/config has @babel/core 7.9.0, which does not support .assumptions. You can run npm dedupe and see if @expo/config can depends on latest versions.

| | `-- @expo/config@4.0.2
| |   +-- @babel/core@7.9.0

Update: It seems that @expo/config specifically locks @babel/core to 7.9.0: https://github.com/expo/expo-cli/blob/fcbe8a7dcc955add3817cfef1f1d92fbaa413ad8/packages/config/package.json#L35 I would suggest open an issue there.

rhoehener · 2021-06-10T20:02:16Z

Ok thank you for looking at this. I will pass it on to Expo and MobX.

hzoo · 2021-06-30T17:53:17Z

Looks like we can close this? On our end, maybe we want to add a suggestion to check version numbers and when an option was added (or that link could be enough)

ref babel/babel#13452

rhoehener added the i: needs triage label Jun 10, 2021

JLHwung added area: downstream and removed i: needs triage labels Jun 10, 2021

This was referenced Jun 10, 2021

No log statements visible in terminal where expo is started in combination with annotations / babel decorators mobxjs/mobx#2981

Closed

raise version for @babel/core? expo/expo-cli#3570

Closed

hzoo closed this as completed Jun 30, 2021

hzoo added a commit to babel/website that referenced this issue Jun 30, 2021

add version for assumptions

2a2f1d5

ref babel/babel#13452

github-actions bot added the outdated A closed issue/PR that is archived due to age. Recommended to make a new issue label Sep 30, 2021

github-actions bot locked as resolved and limited conversation to collaborators Sep 30, 2021

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[Bug]: Unknown option: .assumptions. #13452

[Bug]: Unknown option: .assumptions. #13452

rhoehener commented Jun 10, 2021 •

edited

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babel-bot commented Jun 10, 2021

JLHwung commented Jun 10, 2021

rhoehener commented Jun 10, 2021

rhoehener commented Jun 10, 2021 •

edited

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JLHwung commented Jun 10, 2021 •

edited

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rhoehener commented Jun 10, 2021

hzoo commented Jun 30, 2021

[Bug]: Unknown option: .assumptions. #13452

[Bug]: Unknown option: .assumptions. #13452

Comments

rhoehener commented Jun 10, 2021 • edited Loading

💻

How are you using Babel?

Input code

Configuration file name

Configuration

Current and expected behavior

Environment

Possible solution

Additional context

babel-bot commented Jun 10, 2021

JLHwung commented Jun 10, 2021

rhoehener commented Jun 10, 2021

rhoehener commented Jun 10, 2021 • edited Loading

JLHwung commented Jun 10, 2021 • edited Loading

rhoehener commented Jun 10, 2021

hzoo commented Jun 30, 2021

rhoehener commented Jun 10, 2021 •

edited

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rhoehener commented Jun 10, 2021 •

edited

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JLHwung commented Jun 10, 2021 •

edited

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