Hello,

I'm new to VB and Passolo automation and I'm already stuck at the first code lines. I'm working on an app, which should update the Source stringLists of a specific bundle with a button. I believe I have an empty variable and I can't find much online when not related to Passolo macro. Below is my form:

Imports PassoloU

Public Class Form1

Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click
Dim PSL As PassoloApp
Dim myBundle As PslProject

PSL = CreateObject("Passolo.Application")
myBundle = PSL.Projects.Open("C:\Test\Bundle.lpu")

MessageBox.Show("Number of active projects: " & PSL.Projects.Count)

MessageBox.Show("Number of source files: " & myBundle.SourceLists.Count)

myBundle.UpdateSourceLists()

End Sub

End Class

I have an error message "Object reference not set to an instance" wherever I try to use the variable myBundle. It seems to be empty. When adding a message box to see how many projects were opened, I got 0. 

Can anyone help me?