https://community.qlik.com/t5/Talend-Studio/resolved-JobServer-Install-Error/m-p/2303013#M146171 Here are the steps I took: <BR />Removed existing 4.1.2 jobserver Service from Windows 2003 server. (jsl.exe -remove) <BR />Replaced environment path for 4.1.2 jobserver directory with 4.2.3 jobserver directory (manual) <BR />When I enter , I get the following error. <BR />C:\Documents and Settings\mark.sutfin&gt;jsl.exe -debug <BR />Debugging Talend JobServer. <BR />Now starting JVM <BR />ControlHandler registered after JVM start <BR />Exception in thread "main" java.lang.NoClassDefFoundError: org/talend/remote/job <BR />server/service/WindowsJobServer <BR />Caused by: java.lang.ClassNotFoundException: org.talend.remote.jobserver.service <BR />.WindowsJobServer <BR /> at java.net.URLClassLoader$1.run(Unknown Source) <BR /> at java.security.AccessController.doPrivileged(Native Method) <BR /> at java.net.URLClassLoader.findClass(Unknown Source) <BR /> at java.lang.ClassLoader.loadClass(Unknown Source) <BR /> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) <BR /> at java.lang.ClassLoader.loadClass(Unknown Source) <BR />Now destroying JVM <BR />Stopping Talend JobServer. <BR />Trying to stop service via JNI call to java/lang/System.exit <BR />Done <BR />Exiting <BR />I believe this is our last task in getting upgraded to 4.2.3 Any help is greatly appreciated! <BR />Mark Sat, 16 Nov 2024 12:31:50 GMT Anonymous 2024-11-16T12:31:50Z https://community.qlik.com/t5/Talend-Studio/resolved-JobServer-Install-Error/m-p/2303013#M146171 Here are the steps I took: <BR />Removed existing 4.1.2 jobserver Service from Windows 2003 server. (jsl.exe -remove) <BR />Replaced environment path for 4.1.2 jobserver directory with 4.2.3 jobserver directory (manual) <BR />When I enter , I get the following error. <BR />C:\Documents and Settings\mark.sutfin&gt;jsl.exe -debug <BR />Debugging Talend JobServer. <BR />Now starting JVM <BR />ControlHandler registered after JVM start <BR />Exception in thread "main" java.lang.NoClassDefFoundError: org/talend/remote/job <BR />server/service/WindowsJobServer <BR />Caused by: java.lang.ClassNotFoundException: org.talend.remote.jobserver.service <BR />.WindowsJobServer <BR /> at java.net.URLClassLoader$1.run(Unknown Source) <BR /> at java.security.AccessController.doPrivileged(Native Method) <BR /> at java.net.URLClassLoader.findClass(Unknown Source) <BR /> at java.lang.ClassLoader.loadClass(Unknown Source) <BR /> at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) <BR /> at java.lang.ClassLoader.loadClass(Unknown Source) <BR />Now destroying JVM <BR />Stopping Talend JobServer. <BR />Trying to stop service via JNI call to java/lang/System.exit <BR />Done <BR />Exiting <BR />I believe this is our last task in getting upgraded to 4.2.3 Any help is greatly appreciated! <BR />Mark Sat, 16 Nov 2024 12:31:50 GMT https://community.qlik.com/t5/Talend-Studio/resolved-JobServer-Install-Error/m-p/2303013#M146171 Anonymous 2024-11-16T12:31:50Z https://community.qlik.com/t5/Talend-Studio/resolved-JobServer-Install-Error/m-p/2303014#M146173 I missed updating the jsl.ini path with the location of of the jobserver 4.2.3 directory.. Actually, I didn't see that in the docs, but I was able to install the service and TAC can communicate with the jobserver agents.. <BR />I am unable to generate any of the jobs in TAC.. they all fail with "Unexpected error, contact your administrator". I'll open a new ticket for this...and have closed this one.. <BR />Mark Thu, 01 Dec 2011 17:46:10 GMT https://community.qlik.com/t5/Talend-Studio/resolved-JobServer-Install-Error/m-p/2303014#M146173 Anonymous 2011-12-01T17:46:10Z