Type 'UiPath.Excel.WorkbookApplication' is not defined

[Stabbathehut]

This issue arises when I attempt to validate all. Also, when starting the process, it only shows the output information rather than displaying what is happening visually within the process.

Any ideas would be greatly appreciated

[lakshman (Ganta lakshman)]

@Stabbathehut

Create Workbook variable for that Excel Application Scope activity then that error will gone.

[loginerror (Maciej Kuźmicz)]

Hi @Stabbathehut

Welcome to our UiPath Forum!

Please see this guide here:

How to Solve The Recent Validation Error In Excel Application Scope

Hello Guys, Problem Statement With the latest update of the UiPath studio, there are concerns around the Excel Application Scope as it throws out validation errors. Many are complaining about this error “Excel Workbook Application is not defined”, and I have personally come across this in my automation solutions. You could easily locate this error by simply clicking on the Validate button on the top ribbon. If you have excel application scope, most probably you’ll see this error. It doesn’t sh…

(it’s basically more elaborated version of the solution provided by @lakshman)