B4J Tutorial B4J Download and Install


Licensed User
I have downloaded the 2.00 version from a link I received in email send to me.

When I try to run setup error window pops up that says:
"An error occurred while trying to replace the existing file:
DeleteFile failed; code 32.
The process cannot access the file because it is being used by another process."

I have tried downloading new install file, and uninstall the old version, but nothing seems to work.

Can someone help me... tnx.


Active Member
Licensed User

Downloaded and installed but totally dont know how to relate it with B4J.. It simply "download" a fxml file by opening a web browswer.. and if i drag the file to the scene builder, seems like the file is the copied one but not the one in the B4J project??


Well-Known Member
Licensed User
From within B4J, with a saved project opened, click on Designer>Create New Layout and it should automatically open up Scene Builder. Later on, your saved layout files will be listed under Create New Layout and you can edit them with Scene Builder by clicking on them from within B4J. Don't forget to save your layout files from within Scene Builder.


New Member
Hello , can somebody advice me why all the texts (code, menu, etc) in b4j are white ? attached you can find some print screens with different themes.
Thank you


Staff member
Licensed User
It looks like the .Net Framework is not configured properly. Try to reinstall it.
Might also be a display driver issue.

Which version of Windows are you using?

Toky Olivier

Licensed User
Hi, I'm able to compile one very simple project but I cannot run it. I use the last version of B4J and JDK 8.0.25.
Do I still need Oracle's Scene Builder or do I need to update JDK or something else?

Thank you.