Error: Unable to Access Jarfile — How to Fix It

Java can't find or read the JAR you named. Fix the wrong folder, hidden .jar.jar extensions, spaces in the path and Run-as-administrator start scripts.

Step 1: Check You Are in the Right Folder

Step 2: Check the Exact File Name

Step 3: Quote Paths With Spaces

Step 4: Fix the Start Script (start.bat / start.sh)

Step 5: Check the File Can Be Read

A Different Error? Check Which One You Have

Summary