WindowBuilder was not able to show the GUI. unable to load *.wbp-component.xml description for component javax.swing.JFrame

Question

I'm using Eclipse 2021-9 version and already have windowbuilder installed. this error happens when I click the designer tab. Can anybody help me?

Mild

Which version of WindowBuilder? Could you reproduce this issue with a fresh Eclipse 2021-09 without additional installed plugins, only with the WindowBuilder plugin and a fresh workspace? If yes, please show a minimal Java file with which it can be reproduced. – Botts

The WindowBuilder version is the most recent one, I got from the oficial website. Actually this is a new Eclipse, I reinstalled it, so there is no plugins beyond WindowBuilder. Thanks for answering! – Mild

This may not be related at all, but in the Preferences look at 'Java > Appearance > Type Filters' and clear any filter for 'java.awt.*' – Rachelrachele

Then please show a minimal Java file with which it can be reproduced. – Botts

Did you import files or workspaces from an older version of Eclipse? – Gamelan

Same issue here - fresh new Eclipse install and WB just crashed with same error – Idioglossia

@AlexByrth Which WB version do you have and with which Java version do you run Eclipse? There are issues with Java 16 and 17 that have already been fixed. – Botts

Answer 1

I had the same issue and I just updated WindowBuilder Nightly Build 1.9.6.pre instalation and the problem was solved.

Geelong

You mean this? https://mcmap.net/q/1636919/-windowbuilder-design-tab-incomplete-in-eclipse – Botts

Just had the same issue! Updating WindowBuilder Nightly 1.9.6.pre worked for me too! – Wilhelm

Omg it actually worked, thank you!! – Mild

"it actually worked" Please accept the answer by clicking the tick mark to the left of it. – Filiate

Answer 2

Solution

1. Go to Help > Eclipse Marketplace>
2. Search "Window Builder"

Output:

Click on Installed of Window Builder nightly build 1.9.8.pre

Output:

If there is update then click on it.

Whiffet