Cannot read properties of undefined (reading 'lastComponent')

Hey @Vampire-V please follow properly the bug issue template. We can't help you here without a reproducible demo.

GrapesJS version

• I confirm to use the latest version of GrapesJS

What browser are you using?

Version 127.0.6533.89 (Official Build) (64-bit)

Reproducible demo link

Describe the bug

Please check this.selected has a value of undefined . I used it in react and got an error exception.

/** * Returns model of the selected component * @return {Component|null} * @public */ EditorModel.prototype.getSelected = function () { return this.selected.lastComponent(); };

Code of Conduct

• I agree to follow this project's Code of Conduct

Can you please tell me, Is that issue solved? I have a same issue when i select the open layer manager.

Hey @Vampire-V please follow properly the bug issue template. We can't help you here without a reproducible demo.

Can you please share the solution for that? I have a same issue when i select the open layer manager, this issue raises after i selecting another page in my custom left bar panel.

Thanks for reporting this, @Vampire-V.

The issue with Cannot read properties of undefined (reading 'lastComponent') appears to be a race condition or state management timing problem. This typically happens when component lifecycle events and DOM modifications overlap, creating an inconsistent state.

What to try:

1. Add a setTimeout wrapper to ensure the DOM has settled:

setTimeout(() => {
  // your operation here
}, 0);

2. Check initialization order — make sure components are fully loaded before you interact with them

3. Use the editor's event system — listen to completion events:

editor.on('component:mount', (component) => {
  // safe to interact with component here
});

Recommended next steps:

• Test with the latest GrapesJS version if you haven't
• Provide a minimal reproducible example (CodeSandbox) — this helps the team identify the root cause faster
• Include GrapesJS version, browser, and console errors in your report