InitialAdminPassword file is not created in jenkins folder in windows 10 os

Question

The Jenkins installation seems like it went fine but when I launch the localhost:8080, Jenkins is asking for password. However, I am not able to find the initialAdminPassword file in my system. I checked it multiple times; it seems that this file does not exist. Therefore, what is the issue and how do I get the initial Jenkins login password?

    Feb 06, 2018 6:56:46 PM Main deleteWinstoneTempContents
    WARNING: Failed to delete the temporary Winstone file C:\WINDOWS\TEMP\winstone\jenkins.war
    Feb 06, 2018 6:56:47 PM org.eclipse.jetty.util.log.Log initialized
    INFO: Logging initialized @3166ms to org.eclipse.jetty.util.log.JavaUtilLog
    Feb 06, 2018 6:56:48 PM winstone.Logger logInternal
    INFO: Beginning extraction from war file
    Feb 06, 2018 6:57:09 PM org.eclipse.jetty.server.handler.ContextHandler setContextPath
    WARNING: Empty contextPath
    Feb 06, 2018 6:57:09 PM org.eclipse.jetty.server.Server doStart
    INFO: jetty-9.4.z-SNAPSHOT
    Feb 06, 2018 6:57:09 PM org.eclipse.jetty.webapp.StandardDescriptorProcessor visitServlet
    INFO: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
    Feb 06, 2018 6:57:09 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
    INFO: DefaultSessionIdManager workerName=node0
Feb 06, 2018 6:57:09 PM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart
    INFO: No SessionScavenger set, using defaults
    Feb 06, 2018 6:57:09 PM org.eclipse.jetty.server.session.HouseKeeper startScavenging
    INFO: Scavenging every 600000ms
    Feb 06, 2018 6:57:10 PM org.eclipse.jetty.server.handler.ContextHandler doStart
    INFO: Started w.@f27d66{/,file:///C:/Program%20Files%20(x86)/Jenkins/war/,AVAILABLE}{C:\Program Files (x86)\Jenkins\war}
    Feb 06, 2018 6:57:10 PM org.eclipse.jetty.server.AbstractConnector doStop
    INFO: Stopped ServerConnector@1cd604c{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
    Feb 06, 2018 6:57:10 PM org.eclipse.jetty.server.session.HouseKeeper stopScavenging
    INFO: Stopped scavenging
    Feb 06, 2018 6:57:10 PM hudson.WebAppMain contextDestroyed
    INFO: Shutting down a Jenkins instance that was still starting up
    java.lang.Throwable: reason
    at hudson.WebAppMain.contextDestroyed(WebAppMain.java:388)
    at org.eclipse.jetty.server.handler.ContextHandler.callContextDestroyed(ContextHandler.java:898)
    at org.eclipse.jetty.servlet.ServletContextHandler.callContextDestroyed(ServletContextHandler.java:545)
    at org.eclipse.jetty.server.handler.ContextHandler.stopContext(ContextHandler.java:873)
    at org.eclipse.jetty.servlet.ServletContextHandler.stopContext(ServletContextHandler.java:355)
    at org.eclipse.jetty.webapp.WebAppContext.stopWebapp(WebAppContext.java:1507)
    at org.eclipse.jetty.webapp.WebAppContext.stopContext(WebAppContext.java:1471)
    at org.eclipse.jetty.server.handler.ContextHandler.doStop(ContextHandler.java:927)
    at org.eclipse.jetty.servlet.ServletContextHandler.doStop(ServletContextHandler.java:271)
    at org.eclipse.jetty.webapp.WebAppContext.doStop(WebAppContext.java:569)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:142)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:160)
    at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:124)
    at org.eclipse.jetty.server.Server.doStop(Server.java:523)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89)
    at winstone.Launcher.shutdown(Launcher.java:307)
    at winstone.Launcher.<init>(Launcher.java:167)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at Main._main(Main.java:294)
    at Main.main(Main.java:132)

Feb 06, 2018 6:57:10 PM org.eclipse.jetty.server.handler.ContextHandler doStop
INFO: Stopped w.@f27d66{/,null,UNAVAILABLE}{C:\Program Files (x86)\Jenkins\war}
Exception in thread "Jenkins initialization thread" java.lang.NoClassDefFoundError: hudson/util/HudsonFailedToLoad
    at hudson.WebAppMain$3.run(WebAppMain.java:247)
Caused by: java.lang.ClassNotFoundException: hudson.util.HudsonFailedToLoad
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:560)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 1 more
Feb 06, 2018 6:57:10 PM winstone.Logger logInternal
INFO: Winstone shutdown successfully
java.io.IOException: Failed to start Jetty
    at winstone.Launcher.<init>(Launcher.java:156)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at Main._main(Main.java:294)
    at Main.main(Main.java:132)
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Unknown Source)
    at sun.nio.ch.Net.bind(Unknown Source)
    at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
    at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
    at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:298)
    at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
    at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.server.Server.doStart(Server.java:431)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at winstone.Launcher.<init>(Launcher.java:154)
    ... 7 more
Feb 06, 2018 6:57:10 PM winstone.Logger logInternal
SEVERE: Container startup failed
java.io.IOException: Failed to start Jetty
    at winstone.Launcher.<init>(Launcher.java:156)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at Main._main(Main.java:294)
    at Main.main(Main.java:132)
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Unknown Source)
    at sun.nio.ch.Net.bind(Unknown Source)
    at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
    at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)
    at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:298)
    at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
    at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.server.Server.doStart(Server.java:431)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at winstone.Launcher.<init>(Launcher.java:154)
    ... 7 more

Answer 1

If you are unable to find the secret file, please uninstall and re-install Jenkins again. Else, delete the .jenkins folder in C:\Users\...\.jenkins\secrets.

===============

Are you using jenkins.war or jenkins.exe to install? If you are using jenkins.exe, try to download jenkins.war from Jenkins war.

Open Command Prompt, run java -jar jenkins.war. Click on the images to see the oputput

Open browser with URL localhost:8080/