MultiDoge - solving errors: Java Not Found, not Syncing and not opening

Troubleshooting: the application does not see Java, does not start

In this guide, you will learn how to solve MultiDoge opening and slow sync errors of the latest version 1.7.7, and newer.

How to fix java not found error in MultiDoge

Step 1 - Download and Install Java

Skip this step if you already have Java installed.

When this error occurs, you see "Java has not been found on your computer. Do you want to download it?" multidoge java_not_found

Download the latest version of the application from the official Java website. multidoge download_java

After downloading the software, proceed with the installation. Click "Yes": multidoge install_java

Click "Install": multidoge install_java2

Wait for the installation to complete: multidoge install_java3

Click "Close": multidoge install_java4

Step 2 - Specify Java Environment Variables

MultiDoge cannot open because Java environment variables are not set on the system. Namely, the variable Path is not set. Although Java is already on your system, the application will say "java not installed" until you make the following changes:

  1. Open environment variable settings. The easiest way to open them is to type "path" in the Windows settings search and select "Edit environment variables for your account" multidoge path
    • The second way is to open the System applet and then select Advanced system settings -> Environment Variables. multidoge env
  2. In the window that opens, click "New..." multidoge env2
  3. Enter the environment variables your version of Java. You can find out the version by going to the folder with Java installed. Example: C:\Program Files\Java multidoge env3

    In the Variable name field, enter: JAVA_HOME

    In Variable value:C:\Program Files\Java\jre1.8.0_341\bin

    If you have a different version, then instead of jre1.8.0_341, enter the name of your folder.

  4. System variables should look like this: multidoge env4
    Click "Ok".

Step 3 - Start the wallet again

After setting the environment variables, you will be able to open the multidoge.exe wallet or the multidoge-0.1.7-windows-setup installer. The application requires any version of Java. The main thing was to specify the path to the installed version of Java in the system environment variables.

Video Guide

An issue with java/MultiDoge not opening on Mac

To run view/change environment variables on macOS1:

% nan
o ~/.zshenv
export JAVA_HOME=$(/usr/libexec/java_home)
% source ~/.zshenv

% echo $JAVA_HOME

Learn more about setting Java variables on macOS

Watch the video:

how to solve Multidoge java has not been found on your computer
Replace jdk1.8.0_131 with your ver you can find name at C:\Program Files\Java\

MultiDoge still won’t open, what should I do?

Follow the instructions to open the application.2

  1. Go to .config/MultiDoge or %appdata%\MultiDoge depending on your OS. multidoge appdata
  2. Back up your wallet. The file has a .wallet extension. Copy it to a safe place. You can put it in DropBox or OneDrive and encrypt it with a password. Better yet, copy the entire folder before deleting it.
  3. Delete the MultiDoge folder in .config/ or %appdata%
  4. If the folder cannot be deleted because “the file is already open by another program”, open the task manager and end the javaw.exe and MultiDoge.exe processes.
  5. Launch MultiDoge.
  6. Open your .wallet using File > Open Wallet.
  7. Set your preferences using View > Preferences.

If you have any shortcuts for your addresses, they are stored in your .info files, so save those files as well.

Wallet synchronization not working

Method 1: transfer wallet to another application

You will need your wallet passwords in order to export the private key. If you have a private key, use the Exodus wallet. In this app, there is a Move Funds section in the 3-dot drop-down menu. Enter your private key there and it will transfer all funds to your Exodus wallet.

You can also transfer the private key to Dogecoin Core.

Method 2: Update checkpoints

If you are far behind in sync, then this guide is for you. Even if you are currently already synced, it’s worth following this guide to be prepared for future resyncs. These new checkpoints contain blocks until January 30, 2021. If you are trying to sync a wallet that was created before the summer of 2016, then unfortunately this will not help you.

How to quickly sync MultiDoge?3

  1. Completely close MultiDoge.
  2. Download this file: multidoge.checkpoints
  3. Copy this file to the MultiDoge data directory. See the path below. Overwrite the existing file. If you have already synced to this step, then you are all set. If not, continue.
  4. Launch MultiDoge.
  5. From the MultiDoge menu, select Tools, then Reset Blockchain and Transactions.
  6. On the tab that appears, click Reset blockchain and transactions (Reset blockchain and transactions).

Congratulations, you just updated your checkpoints! If after step 6 you no longer see your balance, don’t worry. It will appear after the synchronization is completed.

You may need to turn on show hidden files and folders to find them.




/Users/<your_user_name>/Library/Application Support/MultiDoge


/home/<your_user_name>/MultiDoge or /home/<your_user_name>/.config/MultiDoge

Method 3: Add peers to the config file if sync gets stuck and takes forever

Synchronization can be speeded up by manually adding connections. All these parameters are set in the main configuration file multidoge.properties4

Open your file. It is located on the following path:


See above for paths for other operating systems.

Add peers from this list:


Stuck on connecting or does not connect to the network

Follow the advice from the creator of Multidoge:

  1. After resetting the blockchain, repeatedly opening and closing Multidoge sometimes helps to solve the problem. After each re-opening, sync progresses a bit until it stops again. After 5-6 re-openings, we eventually saw the DOGE we had.

  2. Immediately go to Tools -> Export Private Keys -> Do not password encrypt.

  3. Then find multidoge.key in C:\Users\%username%\AppData\Roaming\MultiDoge and open it in a text editor. Create a new wallet at and then use the ‘Import Wallet’ option to paste it into separate keys from the multidoge.key file.

  4. Get rid of Multidoge. it has been unsupported since 2017 and hangs. Use alternatives.




4 minute read

Matthew Wood

Matthew Wood

Blockchain developer and crypto trader