<blockquote>
<pre><code>java -jar /opt/Bisq/app/desktop-0.9.8-all.jar                                                                                                                                                                                    
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: 
bisq/desktop/app/BisqAppMain has been compiled by a more recent version of the Java
Runtime (class file version 54.0), this version of the Java Runtime only recognizes 
class file versions up to 52.0 at java.lang.ClassLoader.defineClass1(Native Method)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
 at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
 at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
 at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)
</code></pre>
</blockquote>
<p>If you are launching the jar file manually than you need to have OpenJDK10 installed on your machine.</p>

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