Open the (Windows) or Terminal (macOS/Linux). Type java -version and press Enter.
You are trying to run a 64-bit application with a 32-bit Java installation, or vice-versa. How to Fix the "Java Runtime Environment Required" Error 1. Verify Your Current Java Installation
The application requires a specific version (e.g., Java 8 vs. Java 17) that you don't have. java runtime environment download required error
Even if you think Java is installed, several underlying issues can trigger this message:
The system "Path" or JAVA_HOME variable is missing or points to a folder that no longer exists. Open the (Windows) or Terminal (macOS/Linux)
Before downloading anything new, check if Java is already recognized by your system:
The Java Runtime Environment (JRE) is simply not installed on your system. How to Fix the "Java Runtime Environment Required" Error 1
The error is a common stumbling block when trying to launch Java-based applications like Minecraft, Eclipse, or specialized enterprise software. This error typically means your operating system cannot find a valid Java Virtual Machine (JVM) to execute the program. Why Does This Error Happen?