Can you please share how you fixed your issue? I got the same issue wwhen I downgraded to 2.79
On Saturday, March 3, 2018 at 6:20:46 PM UTC+5:30, Poovaraj Thangamariappan wrote: > > > It is working fine after installing Jenkins 2.48 version > > On Sat, Mar 3, 2018 at 4:00 PM, Baptiste Mathus <m...@batmat.net > <javascript:>> wrote: > >> The recommended path is to use and restore your backup. Downgrading is >> not (yet) a supported use case. >> >> XML version was upgraded from 1.0 to 1.1 in 2.105 >> https://jenkins.io/changelog/#v2.105 >> >> Looking at how often you upgrade, you really should use the LTS vesion of >> Jenkins, not the weekly. Cf. https://jenkins.io/download/lts/ >> >> 2018-03-03 7:35 GMT+01:00 Poovaraj Thangamariappan <poovar...@gmail.com >> <javascript:>>: >> >>> Hi Team, >>> >>> I have downgraded Jenkins latest version to old version(2.48). I got >>> below error message after launch the Jenkins. Please help me to fix this >>> issues. >>> >>> org.xmlpull.v1.XmlPullParserException: only 1.0 is supported as <?xml >>> version not '1.1' (position: START_DOCUMENT seen <?xml version=\'1.1\'... >>> @1:19) >>> at org.xmlpull.mxp1.MXParser.parseXmlDeclWithVersion(MXParser.java:2608) >>> at org.xmlpull.mxp1.MXParser.parseXmlDecl(MXParser.java:2592) >>> at org.xmlpull.mxp1.MXParser.parsePI(MXParser.java:2466) >>> at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1447) >>> at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395) >>> at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093) >>> at >>> com.thoughtworks.xstream.io.xml.XppReader.pullNextEvent(XppReader.java:109) >>> Caused: com.thoughtworks.xstream.io.StreamException: : only 1.0 is >>> supported as <?xml version not '1.1' (position: START_DOCUMENT seen <?xml >>> version=\'1.1\'... @1:19) >>> at >>> com.thoughtworks.xstream.io.xml.XppReader.pullNextEvent(XppReader.java:124) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractPullReader.readRealEvent(AbstractPullReader.java:148) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractPullReader.readEvent(AbstractPullReader.java:141) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractPullReader.move(AbstractPullReader.java:118) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractPullReader.moveDown(AbstractPullReader.java:103) >>> at com.thoughtworks.xstream.io.xml.XppReader.<init>(XppReader.java:63) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractXppDriver.createReader(AbstractXppDriver.java:54) >>> at >>> com.thoughtworks.xstream.io.xml.AbstractXppDriver.createReader(AbstractXppDriver.java:65) >>> at hudson.XmlFile.unmarshal(XmlFile.java:159) >>> Caused: java.io.IOException: Unable to read C:\Users\poo\.jenkins\config.xml >>> at hudson.XmlFile.unmarshal(XmlFile.java:161) >>> at jenkins.model.Jenkins.loadConfig(Jenkins.java:3022) >>> at jenkins.model.Jenkins.access$1200(Jenkins.java:304) >>> at jenkins.model.Jenkins$16.run(Jenkins.java:3040) >>> at >>> org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169) >>> at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282) >>> at jenkins.model.Jenkins$7.runTask(Jenkins.java:1064) >>> at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210) >>> at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117) >>> at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown >>> Source) >>> at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown >>> Source) >>> at java.base/java.lang.Thread.run(Unknown Source) >>> Caused: org.jvnet.hudson.reactor.ReactorException >>> at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:269) >>> at jenkins.InitReactorRunner.run(InitReactorRunner.java:47) >>> at jenkins.model.Jenkins.executeReactor(Jenkins.java:1088) >>> at jenkins.model.Jenkins.<init>(Jenkins.java:904) >>> at hudson.model.Hudson.<init>(Hudson.java:85) >>> at hudson.model.Hudson.<init>(Hudson.java:81) >>> at hudson.WebAppMain$3.run(WebAppMain.java:231) >>> Caused: hudson.util.HudsonFailedToLoad >>> at hudson.WebAppMain$3.run(WebAppMain.java:248) >>> >>> >>> Regards, >>> Poovaraj >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Jenkins Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to jenkinsci-use...@googlegroups.com <javascript:>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/jenkinsci-users/cf6d78d2-6495-4801-8efa-915c3e532153%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/jenkinsci-users/cf6d78d2-6495-4801-8efa-915c3e532153%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Jenkins Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to jenkinsci-use...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/jenkinsci-users/CANWgJS6bjbspVHppJQn7YCcJbsPhr1iMWEZxxqCVmaKG3z1Vug%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/jenkinsci-users/CANWgJS6bjbspVHppJQn7YCcJbsPhr1iMWEZxxqCVmaKG3z1Vug%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. 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