# Ignition Designer Launcher cannot launch **URL:** \ **Category:** Ignition\ **Created:** [June 10, 2026, 11:58am UTC](https://forum.inductiveautomation.com/t/ignition-designer-launcher-cannot-launch/115923 "2026-06-10T11:58:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![hisham.ahmed](https://avatars.discourse-cdn.com/v4/letter/h/b4bc9f/32.png) [@hisham.ahmed](https://forum.inductiveautomation.com/u/hisham.ahmed)\ **Post date:** [June 10, 2026, 11:58am UTC](https://forum.inductiveautomation.com/t/ignition-designer-launcher-cannot-launch/115923/1 "2026-06-10T11:58:35Z")
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](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](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 ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [June 10, 2026, 4:29pm UTC](https://forum.inductiveautomation.com/t/ignition-designer-launcher-cannot-launch/115923/2 "2026-06-10T16:29:35Z")
> [@hisham.ahmed](#): > > ERROR [LaunchClientJarService] [2026/06/10 15:30:09]: Launch client jar signature is expired. It is recommended to upgrade this gateway. Contact an administrator. 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: > **[Signature Verification​ - Launchers and Workstation | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.3/launchers-and-workstation#signature-verification)** > > 💡Have feedback for this page? Let us know on the IA Forum. | Ignition features several launchable runtimes 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): ```python 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.