To check your Java version, open the Command Prompt as an administrator, type the command java -version and press Enter. Once the installation is complete, activate the new version of Java by following Step 2. Once you've downloaded your Java version, double-click on the installation file and press “Run” to start the installation. You can download it from the Oracle website. If the installed version of Java is lower than 8, you should download the latest version from Java’s official website. For example if you have installed Java in “C:\Program Files\Java\jre1.8.0_111\bin”, add that value to the existing Path. Now, append the path where you have installed Java to the existing value of the ‘Path’ variable. Search for the “Path” variable and double-click on it.This will open up a list of System Variables.Now click on the “Environment Variables” button.Then click on “System” and then select “Advanced System Settings” from the left side menu.Open Settings by searching for it in the Start Menu.To update the file path for Java, follow these steps: If the Java version is 8 or higher, but the install4j wizard is unable to detect Java, it is likely that the wizard is unable to find the file path for Java. If the installed Java version is lower than 8, continue to Step 3. In this case, you should proceed to Step 2. If the installed version is 8 or higher, your problem may be because the install4j wizard isn't able to detect Java. This command will show you which version of Java is installed on your machine. Once the Command Prompt window is open, type the command java -version and press Enter. To do this, open the Command Prompt as an administrator. Step 1: Check Your Java Versionįirst, you should check the version of Java currently installed on your machine. To troubleshoot this issue, follow the instructions in this guide. The error message you may encounter indicates that the installer requires Java version 8 or higher. If you are an application developer and you are using install4j to create a setup wizard, there may be times when the install4j wizard cannot find Java on your computer and the installation process fails.
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