Solved: Multiple formulas in OnChange property

Hi there,

I am making an app where i have a dropdown box. In this dropdown box i want to make some variables and do a clear collect in the "OnChange" property. When i make an extra button and put the excact same function in the "onSelect" property, it works fine. But when i put the Clearcollect() in the dropdown "Onchange" i get a weird error. Can somebody help me? Why does it do this?