Alex, I've went through the code and it seems that it can be no problem with ItemRendererDataBinding.
In _bindings array I have ["FontAwesomeIconType", "GLASS"] In ItemRendererDataBinding there is condition in set strand if (binding.source is Array && binding.source.length == 2 && binding.destination.length == 2) { where binding.source[0] ("FontAwesomeIconType") was taken and used for searching inside watchersMap. } Question is - How can we recognize that FontAwesomeIconType is not instance of the class and GLASS is static property ? Is this job for the compiler ? Piotr ----- Apache Flex PMC piotrzarzyck...@gmail.com -- View this message in context: http://apache-flex-development.2333347.n4.nabble.com/FlexJS-Runtime-error-when-setting-a-property-to-a-constant-value-tp57874p57914.html Sent from the Apache Flex Development mailing list archive at Nabble.com.