Help me guys (Runtime error with any component block)

[Alaqmar_Bohori]

See this -

Property getter was expecting a com.google.appinventor.components.runtime.Button component but got a YailList instead

From the error i guess that you are trying to use the any component blocks and the components are in a list. But instead of the com.appinventor.components type of input ([image] ) you are simply sending such a component name - [image] . For more help try sending your blocks or .aia here. Also, look here -