How to Fix: Eclipse returns error message "Java was started but returned exit code = 1"

Eclipse returns an error message 'Java was started but returned exit code = 1' when attempting to launch or run applications within the IDE. This issue affects users who have installed Eclipse on their Windows operating system and are experiencing problems with the Java runtime environment.

This frustrating error can be caused by a variety of factors, including incorrect Java version settings, insufficient memory allocation, or corrupted Eclipse plugins. In this guide, we will walk you through the root causes of this issue and provide step-by-step instructions for resolving it.

🛑 Root Causes of the Error

• The primary reason for this error is an incompatibility between the Java version specified in the Eclipse settings and the actual Java runtime environment installed on your system. Eclipse requires a minimum Java version of 1.6, but if you have a newer version installed (such as Java 8 or later), it may not be compatible with the IDE.
• Another possible cause is insufficient memory allocation for the Java Virtual Machine (JVM). If the JVM is allocated too little memory, it can lead to performance issues and errors like 'Java was started but returned exit code = 1'.

🛠️ Step-by-Step Verified Fixes

🎯 Final Words

By following these steps, you should be able to resolve the 'Java was started but returned exit code = 1' error in Eclipse. Remember to always check your Java version settings and ensure that sufficient memory allocation is available for optimal performance.