The error message, “Unable to access jarfileminecraft_server.jar,” occurs when the server panel cannot locate the designated JAR File. If you encounter this error, don’t press the panic button yet. Our tech experts details working ways to fix this problem.
What is JAR and What Caused This Error?
Jar files are java-based files that are also applications and a package file format. When a Java file cannot locate the JAR file while playing the Minecraft game, you’re cannot access the jarfile server.
Java Version Not Up-to-Date
One of the major reasons you can run into this jarfile Minecraft server error is when you’re using an outdated java version. Before you run jar files, get the latest Java version first.
Hidden Files
Sometimes, you can’t access the Minecraft server because your files, folder, or drivers are hidden. All you have to do is unhide these files.

Malware
Malware can change your game files and affect some keys, thus leading you to get an access jarfile error. The best way around this is to download an anti-virus application.
Incorrect Configuration
You may also get this error message if the configuration of your java file path is in the wrong location. So your PC cannot locate the jarfile as it’s in the wrong file path.
How to Solve the "Unable to Access Jarfile" Issue on Minecraft Server
Install the Latest Version of Java
- Press the Windows and R buttons on the keyboard simultaneously to access the dialogue box.
- Input appwiz.cpl, then press enter to access programs and features. Right-click and select uninstall.
- Log on to the official java website to get and install the latest version.

Configure the Correct Java File Path
To determine the correct file path, read the relevant document, as this will enable you to identify if you have been using the incorrect or the wrong jar files path.
Open Hidden Files or Folders
- On the settings menu of your file explorer, click the options button to open the Windows directory.
- Select the view tab to display hidden folders and files.
- Click on the apply button to modify the settings.
Fix Thru Your Server Hosting Provider's Settings
- Open your server hosting’s control panel, then click Stop.
- Go to the FTP files.
- Find and enter the Minecraft Jarfolder.
- Rename the FTP file to match the new name and save.

Fix the Server Installation Files Thru Your Server Hosting Provider
- Click on the control panel, then click Stop.
- Access the FTP files and enter the Jar folder.
- Check the name of the jar folder and scroll down to the Game Files section.
- Rename the FTP file to match the new name and save.
How to Solve the "Unable to Access Jarfile" Issue on Mac OS
Open the Jar File From the Terminal
To run the .Jar doc from terminal [1] on your PC, press Ctrl+Option+Shift+T simultaneously to open a new terminal. Then, enter $java-jar file name .jar into the newly opened terminal.
Open the Jar File From the Console
Running the Jar file on the console will return an error. So, follow the on-screen instructions to open the jar file.
Conclusion
Encountering the “Unable to access jarfileminecraft_server.jar,” is inevitable if the server panel cannot locate the JAR file. However, anytime you encounter this error, you can count on the above-mentioned fixes in this guide.