Recently, while trying to code on React; I got an unexpected error; TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’). Here is the snippet of the error I got:
ERROR TypeError: undefined is not an object (evaluating 'ReactCurrentActQueue$1.isBatchingLegacy')I would like to share the steps that helped me to fix the TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) error.
Why TypeError undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) Error is seen ?
TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) error; is seen because you are using an old version of react-native that is version 0.65. It happens because React 18 is not being used despite being set in the dependencies. If you want to read more about the error, please read through the following link here.
A simple solution is to downgrade your docker react native version. You can downgrade the reactive native version to react native version 0.65.
To fix the error you can set up the resolutions to use React 17 in the root package.json of your project. If you are facing the same issue, you start a new react-native project in your computer
A detailed solution to fix the TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) error is provided below:
How to fix TypeError undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) error ?
A simple solution is to downgrade your docker react native version. You can downgrade the reactive native version to react native version 0.65.
To fix the TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’); you will have to follow the below-mentioned steps to fix the error.
Step 1: If you are using expo or react native please use an older version of react-native(0.65)
Step 2: Create a new project and move your code there.
If you are facing the same issue, you start a new react-native project in your computer. If you want to read more about the error, please read through the following link here.
The above mentioned steps should fix TypeError undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’) Error.
Conclusion
To fix the TypeError: undefined is not an object (evaluating ‘ReactCurrentActQueue$1.isBatchingLegacy’); you can downgrade the reactive native version to react native version 0.65. If you want to read more about the errors, please read through the following link here.
React 18 is not being used despite being set in the dependencies. You can set up the resolutions to use React 17 in the root package.json of your project .If you are facing the same issue, you start a new react-native project in your computer.