How to Fix WindowBuilder Was Not Able to Show The GUI in Eclipse

In this article, I will guide you on how you can fix the WindowBuilder not working error. Firstly, I will tell you when and why does WindowBuilder error occurs. Lastly, I will tell you how you can fix it.

When Does WindowBuilder Error Occur?

STEP 1: When you create the Java Project in Eclipse.

STEP 2: After creating the Project you need to create a JFrame.

STEP 3: For that Right Click on the src folder then click on the New. You see the many options, find out the other option, and click it. 

A Dialog window is opened on which to search the JFrame. 

Select the JFrame and Click on the Next Button. Then give the package name and JFrame name and Click on the Finish Button. 

STEP 4: When you open the Design you will see the error "WindowBuilder Was Not Able to Show The GUI". 

After following these steps you are getting this error. This error occurs because some of the WindowBuilder files are missing or not updated.

The solution of WindowBuilder Was Not Able to Show The GUI

STEP 1: At the top navigation go to the "Help" Menu. Then click on "Install New Software".

STEP 2: Select the site, for that click on the dropdown icon, and then click on "All Available Sites".

STEP 3: Find out the "General Purpose Tools" and then click on the next button. Then wait for the completion of the Software installation. After the Installation is completed restart the eclipse. Now Design will work properly.

Video Guide:

 

If you are facing other errors related to window builder. You can tell us by commenting. We will definitely come up with a solution for you.