React Errors Troubleshooting Steps

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### **1. `react-dom.min.js` Error:**

**Error:**

Uncaught TypeError: Cannot read properties of undefined (reading 'unstable_scheduleCallback')

**Cause:**
– This error suggests that the `unstable_scheduleCallback` property is being referenced, but it is not available. This can happen due to a mismatch between the version of `react-dom` and React or an incompatible library relying on older APIs of `react-dom`.
– React 18 introduced significant changes to how rendering works, including concurrency features. If a third-party library or plugin is expecting an older React API, this issue might occur.

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### **2. `edit.js` Error:**

**Error:**

Uncaught TypeError: (0 , i.H) is not a function

**Cause:**
– This typically indicates that a library or component is trying to call a function (`i.H`) that does not exist or is undefined.
– It can happen if:
1. A library was designed for a different React version.
2. An import or dependency within `edit.js` is incorrect or outdated.

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### **Steps to Resolve:**

1. **Check React and React DOM Versions:**
– Ensure that both `react` and `react-dom` versions match in your project. Use the same version for both (e.g., 18.3.1).

npm ls react react-dom

If there's a mismatch, update them to the same version:

npm install react@18.3.1 react-dom@18.3.1

2. **Verify Plugin/Library Compatibility:**
– If you're using third-party libraries, verify their compatibility with React 18.
– Update all dependencies to their latest versions:

npm update

3. **Review Installed Plugins:**
– Identify plugins or libraries interacting with `react-dom`. Check their documentation for compatibility notes with React 18.

4. **Check for Custom Scripts:**
– Review `edit.js` or other custom scripts to ensure no deprecated APIs or incorrect imports are being used.

5. **Clean Cache:**
– Clear your node modules and reinstall dependencies:

rm -rf node_modules package-lock.json
   npm install

6. **Test in Isolation:**
– Comment out or remove the offending component/plugin temporarily to isolate the issue. Gradually add components back until the error reappears.

7. **Debugging in the Browser:**
– Use browser developer tools to identify which library or component is triggering the issue.

8. **Fallback to Earlier Versions:**
– If updating doesn't resolve the problem, consider downgrading `react` and `react-dom` to an earlier, stable version compatible with your libraries.

npm install react@17 react-dom@17

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If you share more about the libraries or plugins you are using (e.g., Gutenberg blocks, custom React components, or WordPress integrations), I can offer more specific guidance!