datadriver | Webdriverio helper library | Functional Testing library

I'm new in Robot Framework, and now get stuck while using DataDriver library in my robot script.

My problem: There is a message : "Variable '${username}' not found." while I run the robot script and the test was FAIL.

This is my robot script:

Today, Suddenly my robot Runner.py was not working. Basically Runner.py contains the command line commands to run my robot testcases based on the tags. Evreytime when the Runner.py is ran, a requirements.txt file will be executed and all the libraries in it will be installed by python intepreter.

I am trying to add a tag in accordance with the documentation https://github.com/Snooz82/robotframework-datadriver

Here is my example:

I'm in the process of migrating an existing app using MVC that makes heavy use of the delegation pattern to MVVM using RxSwift and RxCocoa for data binding.

In general each View Controller owns an instance of a dedicated View Model object. Let's call the View Model MainViewModel for discussion purposes. When I need a View Model that drives a UITableView, I generally create a CellViewModel as a struct and then create an observable sequence that is converted to a driver that I can use to drive the table view.

Now, let's say that the UITableViewCell contains a button that I would like to bind to the MainViewModel so I can then cause something to occur in my interactor layer (e.g. trigger a network request). I'm not sure what is the best pattern to use in this situation.

Here is a simplified example of what I've started out with (see 2 specific question below code example):

Main View Model:

I am trying to launch my robot code on a docker image. So I have installed python 3 and all the libraries I need (I hope). Here is an overview:

I am writing a test case using RobotFramework and the XML Library where I want to change the text of an element.

I am also using DataDriver to fill in my arguments.

I have some basic code where I want to change the text element and afterwards I am attempting to confirm that the change was correctly done:

I'm having problems with two UserControls in VB.Net. I'm using VS2012. The UserControl is a panel called DataDriver, which at runtime is created dynamically on a form. Within DataDriver there is a control which is an instance of another UserControl defined in the project called DataLink. DataLink allows the user to select a data source (effectively a named connection string). Both the UserControls are defined in the same project.

At one point within the last 24 hours, I opened DataDriver in design mode and it showed me the screen I often get that states: "To prevent possible data loss before loading the designer, the following errors must be resolved: " with an "Ignore and Continue" link on it, which I clicked. I'm not entirely sure why this appears, but it does.

Once I'd opened DataDriver I found that the UserControl DataLink had disappeared. I created a new instance of it and tried to rename it to its original name (ucDataLink) with the error:

Property value is not valid. There is already a component named 'ucDataLink'. Components must have unique names, and names must be case-insensitive. A name also cannot conflict with the name of any component in an inherited class.

I've closed the project, been through the three components of the UserControl DataDriver (the designer, the resx and the code) and removed any references to ucDataLink, and still is continues to raise this error. I can potentially use a different name, but this is the name that makes sense and I'd like to know how to resolve it.

Extra info. The DataDriver control is only instantiated at runtime. The form it is created in has a public method that is called. The form sets up the dynamic controls as below, and then shows using me.ShowDialog().