Hello! I had download the vaadin.charts.developer.license from https://vaadin.com/pro/licenses,and copy the file to my home directory,but it show the errors:License for Vaadin Charts 2 is not valid
Hi. We checked our license database with your name but we could not find your license. Perhaps it is registered under another name. Could you please contact protools@vaadin.com and we’ll figure it out. Thanks!