The error “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) ” is an error that is invoked whenever you are coding in react native and trying to use the index.js. Given below is the snippet of the error:
ERROR TypeError: undefined is not an object (evaluating 'ReactCurrentActQueue$1.isBatchingLegacy') I would like to share with you the steps I took to fix the “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’)” in your project file.
Why “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) ” error is seen?
The error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) ” is seen because; you are using an new version of react native or because some files in project file may be corrupted
The detailed solution to fix the error “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “, is given below:
How to fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “?
To fix the error, you either have to downgrade your react native to the previous version being used or If you still facing the error you may have to consider creating a new project and moving your code in there.
To fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “, you will have to follow one of the below mentioned methods
Method 1: Downgrade your react-native version
To fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “, you will have to downgrade your react-native version, especially if you are using expo. This is because React 18 is not being used despite being set in the dependencies. You can set the resolutions to use React 17 in your root package json .
This should fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “.
Method 2: Create a new project.
To fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “, you will have to create a new project and move your code there.
“react”: “17.0.2”,
“react-native”: “0.68.2”,
This should fix the error, “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “.
Conclusion
To fix the error “ERROR TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) “, you will either have to downgrade your reactive native to the previous version being used. If you still face the error you may have to consider creating a new project and moving your code in there