Ignition Designer Launcher cannot launch

hisham.ahmed · June 10, 2026, 11:58am

Hello Everyone,
I am working on a new project

I am trying to open designer inside ignition designer launcher for the first time on this PC but it load for signature verification and after that nothing open

Can you please support what is the issue here

and the log is :
INFO [CompositeClassRejectListFilter] [2026/06/10 15:30:01]: Initialization performed successfully
INFO [CompositeClassRejectListFilter] [2026/06/10 15:30:01]: JVM-wide ObjectInputFilter set up successfully
INFO [CompositeClassRejectListFilter] [2026/06/10 15:30:01]: Platform serialFilter has 88 pattern(s)
ERROR [LaunchClientJarService ] [2026/06/10 15:30:09]: Launch client jar signature is expired. It is recommended to upgrade this gateway. Contact an administrator.
INFO [LaunchUtil ] [2026/06/10 15:30:09]: Starting Java with the following parameters: C:\Users\user\.ignition\cache\resources\runtimes\17.0.18\bin\java.exe -classpath C:\Users\user\.ignition\cache\resources\platform\launchclient.jar\00000000C48C1CDB\launchclient.jar -Djavaws.sr.gateway.addr.0=http://localhost:8088 -Djavaws.sr.launchts=1781094609306 -Djavaws.sr.main=com.inductiveautomation.ignition.designer.DesignerStartupHook -Djavaws.sr.platform.edition= -Djavaws.sr.platform.plugins= -Xms64M -Xmx1024M -Djavaws.sr.memory.init=64M -Djavaws.sr.memory.max=1024M --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED --add-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.desktop/javax.swing.tree=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.synth=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED --add-exports=java.desktop/com.sun.awt=ALL-UNNAMED --add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED --add-exports=java.desktop/sun.awt=ALL-UNNAMED --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED --add-exports=java.desktop/sun.awt.shell=ALL-UNNAMED --add-exports=java.desktop/sun.awt.windows=ALL-UNNAMED --add-exports=java.desktop/sun.swing=ALL-UNNAMED --add-exports=java.desktop/sun.swing.plaf.synth=ALL-UNNAMED --add-exports=java.desktop/sun.swing.table=ALL-UNNAMED --add-exports=java.desktop/sun.print=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED -Dsun.java2d.d3d=false -Dsun.java2d.noddraw=false -Djavaws.sr.screen=0 -Djavaws.sr.scope=D com.inductiveautomation.ignition.client.launch.BootstrapSwing
ERROR [LaunchClientJarService ] [2026/06/10 15:30:13]: Launch client jar signature is expired. It is recommended to upgrade this gateway. Contact an administrator.
INFO [LaunchUtil ] [2026/06/10 15:30:13]: Starting Java with the following parameters: C:\Users\user\.ignition\cache\resources\runtimes\17.0.18\bin\java.exe -classpath C:\Users\user\.ignition\cache\resources\platform\launchclient.jar\00000000C48C1CDB\launchclient.jar -Djavaws.sr.gateway.addr.0=http://localhost:8088 -Djavaws.sr.launchts=1781094613453 -Djavaws.sr.main=com.inductiveautomation.ignition.designer.DesignerStartupHook -Djavaws.sr.platform.edition= -Djavaws.sr.platform.plugins= -Xms64M -Xmx1024M -Djavaws.sr.memory.init=64M -Djavaws.sr.memory.max=1024M --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED --add-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.desktop/javax.swing.tree=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.synth=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED --add-exports=java.desktop/com.sun.awt=ALL-UNNAMED --add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED --add-exports=java.desktop/sun.awt=ALL-UNNAMED --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED --add-exports=java.desktop/sun.awt.shell=ALL-UNNAMED --add-exports=java.desktop/sun.awt.windows=ALL-UNNAMED --add-exports=java.desktop/sun.swing=ALL-UNNAMED --add-exports=java.desktop/sun.swing.plaf.synth=ALL-UNNAMED --add-exports=java.desktop/sun.swing.table=ALL-UNNAMED --add-exports=java.desktop/sun.print=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED -Dsun.java2d.d3d=false -Dsun.java2d.noddraw=false -Djavaws.sr.screen=0 -Djavaws.sr.scope=D com.inductiveautomation.ignition.client.launch.BootstrapSwing

paul-griffith · June 10, 2026, 4:29pm

The first thing to do is update your gateway. If that's not an option, you can configure your designer launcher to a lower level of security to accept an otherwise untrusted signature:

Make sure you've closed any running designer launchers before modifying these settings.

If that doesn't work, you can try opening a command line/terminal, and then paste this command in (taken from the "starting Java" line in the logs):

C:\Users\user\.ignition\cache\resources\runtimes\17.0.18\bin\java.exe -classpath C:\Users\user\.ignition\cache\resources\platform\launchclient.jar\00000000C48C1CDB\launchclient.jar -Djavaws.sr.gateway.addr.0=http://localhost:8088 -Djavaws.sr.launchts=1781094613453 -Djavaws.sr.main=com.inductiveautomation.ignition.designer.DesignerStartupHook -Djavaws.sr.platform.edition= -Djavaws.sr.platform.plugins= -Xms64M -Xmx1024M -Djavaws.sr.memory.init=64M -Djavaws.sr.memory.max=1024M --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-opens=java.desktop/java.awt.event=ALL-UNNAMED --add-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.desktop/javax.swing.tree=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.synth=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED --add-exports=java.desktop/com.sun.awt=ALL-UNNAMED --add-exports=java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED --add-exports=java.desktop/sun.awt=ALL-UNNAMED --add-exports=java.desktop/sun.awt.image=ALL-UNNAMED --add-exports=java.desktop/sun.awt.shell=ALL-UNNAMED --add-exports=java.desktop/sun.awt.windows=ALL-UNNAMED --add-exports=java.desktop/sun.swing=ALL-UNNAMED --add-exports=java.desktop/sun.swing.plaf.synth=ALL-UNNAMED --add-exports=java.desktop/sun.swing.table=ALL-UNNAMED --add-exports=java.desktop/sun.print=ALL-UNNAMED --add-exports=java.base/sun.security.action=ALL-UNNAMED -Dsun.java2d.d3d=false -Dsun.java2d.noddraw=false -Djavaws.sr.screen=0 -Djavaws.sr.scope=D com.inductiveautomation.ignition.client.launch.BootstrapSwing

This will give you the full process output of the actual Designer instance you're running, which might be failing for some other reason.