Software⏱️ 2 min read📅 2026-06-03

How to Fix: CreateProcess error=206, The filename or extension is too long when running main() method

Error occurs due to a long filename in the Java executable path.

Quick Answer: Check and shorten the path to the Java executable, or consider using a shorter path variable.

The error 'CreateProcess error=206, The filename or extension is too long' occurs when the system cannot find a file due to its excessive length. In your case, this issue might be caused by a long path in your project's directory. To fix this problem, you can try one of the following methods:

🔧 Proven Troubleshooting Steps

Method 1: Shortening the Path

  1. Step 1: Right-click on your project's directory and select 'Properties'.
  2. Step 2: In the Properties window, navigate to the 'Advanced' tab.
  3. Step 3: Under 'Environment Variables', click on 'Edit'.
  4. Step 4: Remove any unnecessary environment variables and click 'OK'.

Method 2: Using the `shortname` Property

  1. Step 1: In your project's properties, add a new property named 'shortname' with a short and descriptive name for your project.
  2. Step 2: Update the path in your `pom.xml` file (if you're using Maven) or `build.gradle` file (if you're using Gradle) to use the `shortname` property.

✨ Wrapping Up

By applying one of these methods, you should be able to resolve the 'CreateProcess error=206, The filename or extension is too long' issue and successfully run your Java application.

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