# Designer doesn't load NoClassDefFoundError BytePackedRaster **URL:** \ **Category:** Ignition\ **Created:** [February 16, 2016, 5:11pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223 "2016-02-16T17:11:34Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [February 16, 2016, 5:11pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/1 "2016-02-16T17:11:34Z")
Designer doesn’t load after Java Splash Screen. Windows 7 64-bit Ultimate jre-8u74-windows-x64 Ignition Version 7.8.1 (b2016012216) Java Version Oracle Corporation 1.8.0\_74 When trying to open designer on windows 7 64 machine, the Java Splash screen appears and then closes. We never see the ignition loader with progress bar. Ignition designer works well on other PCs. We have added inbound and outbound rules allowing TCP over port 8088 and 8043. We have added [servername:8088](http://servername:8088) to the java trusted site list in the java config. What can be stopping this from running? ---
**Author:** ![nmudge](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nmudge/32/3394_2.png) [@nmudge](https://forum.inductiveautomation.com/u/nmudge)\ **Post date:** [February 16, 2016, 5:20pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/2 "2016-02-16T17:20:04Z")
Did your java web start certificate expire? Check out this article about that problem: [support.inductiveautomation.com … te-expired](https://support.inductiveautomation.com/index.php?/Knowledgebase/Article/View/102/0/ignition-client-blocked-by-java-security-settings-certificate-expired) Best, ---
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [February 16, 2016, 5:55pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/3 "2016-02-16T17:55:52Z")
It is a fresh install of ignition. Certs expire in 2026. ---
**Author:** ![nmudge](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nmudge/32/3394_2.png) [@nmudge](https://forum.inductiveautomation.com/u/nmudge)\ **Post date:** [February 16, 2016, 6:32pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/4 "2016-02-16T18:32:59Z")
What version of Ignition, Ignition 7.8.0 or Ignition 7.8.1? ---
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [February 17, 2016, 1:28am UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/5 "2016-02-17T01:28:56Z")
The latest release version downloaded yesterday. Version 7.8.1 (b2016012216) Java Version Oracle Corporation 1.8.0\_74 ---
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [February 17, 2016, 4:59pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/6 "2016-02-17T16:59:29Z")
Version 7.8.1 (b2016012216) Java Version Oracle Corporation 1.8.0\_74 We uninstalled java completely. We cleared the local profile records for ignition. We then installed the latest JRE from oracle site, jre-8u74-windows-x64. Now we get past the java splash screen and see the ignition files loading, but at the end we get error shown in the attached image. ---
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [February 17, 2016, 5:03pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/7 "2016-02-17T17:03:42Z")
Do I need to open this port on the client and server? serverhostname:8060 Certs Ignition OPC-UA Client uri://10.x.x.x/Ignition%20OPC-UA%20Client Not Before Mon Feb 15 14:34:01 PST 2016 Not After Thu Feb 12 14:34:01 PST 2026 ---
**Author:** ![ecujak](https://avatars.discourse-cdn.com/v4/letter/e/839c29/32.png) [@ecujak](https://forum.inductiveautomation.com/u/ecujak)\ **Post date:** [March 10, 2016, 5:56pm UTC](https://forum.inductiveautomation.com/t/designer-doesnt-load-noclassdeffounderror-bytepackedraster/11223/8 "2016-03-10T17:56:15Z")
JavaPath had links to old version. Removing the path allowed the new version of jre to run. This is fully functional now. Thanks.