In Eclipse in the servers view the LiveReload Server is missing. If I want to add it, there is no option for it (Should be under Basic, but is not. -> see screenshot).
I have the current jboss tools installed and also tried the newest DevStudio. Even there the LiveReload Server was missing and could not be added.
How can I reinstall the LiveReload Server?
LiveReload is currently not installed by default as part of JBoss Tools 4.6 or Devstudio 12, as it was deprecated in 4.5.3 / 11.3.
But it's still available in the update site, and on Red Hat Central. Just find the connector / feature, and install it. Here's a walkthrough for installing it from Central:
Missing LiveReload Server in Eclipse (JBoss Tools) and DevStudio - Stack Overflow
If it doesn't work after that, please see [JBIDE-25990] FrameworkEvent ERROR - JBoss Issue Tracker and feel free to comment on that issue that you're having the same (or similar) problems. It would be helpful to include your version of Eclipse, devstudio, jbosstools, your operating system and version, and your JDK vendor & version.