i am a experience developer more than 2 years of experience your work is like a pie to me easy..................................................................
Hello, I am Robert. I am a full time Yii2 dev at an accountant company.
I will solve your problem in 5 minutes. it is only a missing namespace.
I will happily help you. I have a Yii related reference (a mobile web baseg game) in github. please check it out. the link is in my profile here.
Please feel free to contact me if you have any questions.
Have a nice day!
Robert