I have an issue with installing WSO2 locally. I already follow the steps in the installation guide and when I try to run the server I got the following error.
JAVA_HOME environment variable is set to C:\Program Files\Java\jdk-11.0.17
CARBON_HOME environment variable is set to C:\Program Files\WSO2\Identity Server\6.1.0
Error: Could not find or load main class Files\WSO2\Identity
Caused by: java.lang.ClassNotFoundException: Files\WSO2\Identity
JDK v11.017 WsO2 IS v6.1.0
Based on your error, I think you are on a Windows PC, and you have downloaded the installation installer.msi option to install the product. Try the binary release, where you get a .zip file and extract it to any location, and them you can run from the command prompt.
Also, a common issue when you run WSO2 products initially is the JAVA_HOME. Please check whether you have set the JAVA_HOME correctly.