undefined is not a function(evaluation 'object.getOwnPropertyDescriptors(arguments[i])')

[gsklee]

#23092

Unfortunately this exact same issue strikes again with the release of Babel v7.5.0.

These are the Babel related dependencies I am having:

    "@babel/core": "7.4.5",
    "@babel/plugin-proposal-class-properties": "7.4.4",
    "@babel/plugin-proposal-decorators": "7.4.4",
    "@babel/plugin-transform-flow-strip-types": "7.4.4",
    "@babel/preset-flow": "7.0.0",
    "babel-eslint": "10.0.2",
    "babel-jest": "24.8.0",
    "metro-react-native-babel-preset": "0.54.1",

With the package-lock.json I generated a few days ago everything's fine with npm install, but if I try to do it without the lockfile the error appears. Judging from my lockfile's diff I can say that a few secondary Babel dependencies were updated to v7.5.0 without the lockfile (eg. @babel/generator, @babel/helper-create-class-features-plugin) so am pretty sure this is a Babel issue again.

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[eyousefifar]

I'm having the same problem. in react native typescript template re-export feature is removed from the output. its a typescript transformer plugin issue in my case

[Rodrigo77777]

Old fix does not seem to work this time unfortunately

[kbarralon]

Exact same problem with Typescript and Babel. Named re-export are undefined.

[tasosxak]

I have the same issue:

tasosxak@tasosxak:~/ReactNativeProjects/jar$ react-native --version
react-native-cli: 2.0.1
react-native: 0.58.6

[Udbhav12]

More info here

[mtr1012]

Anyone can fix this issue?

[Fischaela]

With this issue closed, does it fix the issue here?

[mtr1012]

With this issue closed, does it fix the issue here?

nope

"@babel/helpers" : "7.5.1",
"@babel/plugin-proposal-object-rest-spread" : "7.5.1",
"@babel/plugin-transform-typescript": "7.5.1"

upgrade everything to latest version. still have issue.......

[mtr1012]

Insert to package.json to hotfix:

"resolutions": { "@babel/plugin-proposal-object-rest-spread": "7.4.4" }

[devanshsadhotra25]

"resolutions": { "@babel/plugin-proposal-object-rest-spread": "7.4.4" }

for those who are using PropTypes, from prop-types. this will not work

[Matrixbirds]

add below into package.json is work for me.

  "@babel/core": "7.4.5",
  "@babel/runtime": "7.4.5",
  "metro-react-native-babel-preset": "0.54.1"

[ivanguimam]

If you are using Redux, put the fixed version 4.0.1, otherwise the application will break on Android: #25563

The Babel team corrected this problem in the version 7.5.4: babel/babel#10166

[AkioUnity]

Hello.

Yet ,I have same issue.

    "@babel/core": "^7.5.5",
    "@babel/helpers": "^7.5.5",
    "@babel/runtime": "^7.5.5",
    "metro-react-native-babel-preset": "^0.55.0",
    "babel-eslint": "10.0.2",

Please help this

[Fischaela]

For me the updates fixed the issue :)

[gsklee]

Think this has been fixed in Babel:
babel/babel#10166

[AkioUnity]

yes. it is working fine now.
thank you !!