# Error launching designer on Debian10: noClassDefFoundError java/sql/Timestamp **URL:** \ **Category:** Ignition\ **Created:** [October 8, 2019, 11:17am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908 "2019-10-08T11:17:38Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![lorenzo.milesi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lorenzo.milesi/32/10045_2.png) [@lorenzo.milesi](https://forum.inductiveautomation.com/u/lorenzo.milesi)\ **Post date:** [October 8, 2019, 11:17am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/1 "2019-10-08T11:17:38Z")
I’ve just installed Ignition Gateway 7.9.12 on Debian 10.1 amd64 with LXDE, and when I try to run Designer I get the error above: ![immagine](https://us1.discourse-cdn.com/inductiveautomation/original/2X/f/f619cfd81e7c89452a92552dd9eba9d2de2d92c3.png) To run `designer.jnlp` I’ve installed `icedtea-netx` package, and for Java I have adoptopenjdk-8-hotspot-jre version 8u222-b10-2. Thanks ---
**Author:** ![lorenzo.milesi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lorenzo.milesi/32/10045_2.png) [@lorenzo.milesi](https://forum.inductiveautomation.com/u/lorenzo.milesi)\ **Post date:** [October 8, 2019, 11:29am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/2 "2019-10-08T11:29:38Z")
The problem seems to be an incompatibility with Java \> 8. I found I had `openjdk-11-jre` package installed and enabled by default for `java` executable. By running `update-alternatives --config java` and selecting the openjdk version now I’ve the correct java version running: ```auto $ java -version openjdk version "1.8.0_222" OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_222-b10) OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.222-b10, mixed mode) ``` But I’m still getting the same error. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [October 8, 2019, 12:43pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/3 "2019-10-08T12:43:05Z")
Have you tried using the native launcher that comes with 7.9.12? (BTW, jnlp has long been deprecated, and is not available at all with Java9+.) ---
**Author:** ![lorenzo.milesi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lorenzo.milesi/32/10045_2.png) [@lorenzo.milesi](https://forum.inductiveautomation.com/u/lorenzo.milesi)\ **Post date:** [October 8, 2019, 1:01pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/4 "2019-10-08T13:01:02Z")
> [@pturmel](#): > > Have you tried using the native launcher that comes with 7.9.12? indeed that works, thanks. ---
**Author:** ![neuwirth](https://avatars.discourse-cdn.com/v4/letter/n/0ea827/32.png) [@neuwirth](https://forum.inductiveautomation.com/u/neuwirth)\ **Post date:** [July 29, 2020, 9:59am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/5 "2020-07-29T09:59:38Z")
Where can I find “native launcher” ?? I’m using Linux Mint 19.2 and I getting the same error… ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [July 29, 2020, 11:14am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/6 "2020-07-29T11:14:45Z")
You can download them from your gateway. [https://docs.inductiveautomation.com/display/DOC79/Native+Client+Launchers](https://docs.inductiveautomation.com/display/DOC79/Native+Client+Launchers) EDIT: Forgot my manners. Welcome to the forums, by the way! ---
**Author:** ![neuwirth](https://avatars.discourse-cdn.com/v4/letter/n/0ea827/32.png) [@neuwirth](https://forum.inductiveautomation.com/u/neuwirth)\ **Post date:** [July 29, 2020, 12:08pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/7 "2020-07-29T12:08:02Z")
Thank you for reply, but is there some native launchers also for Designer? ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [July 29, 2020, 12:18pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/8 "2020-07-29T12:18:52Z")
On 7.9, I believe you can launch the designer from there as well (upper Right-hand corner IIRC), unless it’s changed in the later versions. ---
**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\ **Post date:** [July 20, 2022, 7:55am UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/9 "2022-07-20T07:55:33Z")
> [@pturmel](#): > > Have you tried using the native launcher that comes with 7.9.12? Old thread, but same problem here. Using the _Native Client Launcher_ I reach the _Open/Create Project_ window, the _Downloading_ window, but after that no Designer shows up. Using _JConsole_ I found the next message `jdk.management.agent not in boot layer` Any idea? Ignition version: **7.9.14 (b2020042813)** Java version: **openjdk version "1.8.0\_312"** OS version: **Ubuntu 22.04 LTS** with **KDE Plasma 5.24.4** Thanks, regards ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [July 20, 2022, 12:10pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/10 "2022-07-20T12:10:31Z")
Use the JRE embedded in the launcher. ---
**Author:** ![pgmo](https://avatars.discourse-cdn.com/v4/letter/p/d07c76/32.png) [@pgmo](https://forum.inductiveautomation.com/u/pgmo)\ **Post date:** [July 20, 2022, 1:22pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/11 "2022-07-20T13:22:04Z")
Hi pturmel, thanks for your reply. I did what you suggest ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/2/b2cbf563fbb668e130cab17175cae3f2f6856428.png) but the designer startup process, after running all intermediate steps (project selection, resources download), does not show any UI - sometimes it manages to show the _Tip of the day_ popup and that’s it. Thanks, regards ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [July 20, 2022, 1:43pm UTC](https://forum.inductiveautomation.com/t/error-launching-designer-on-debian10-noclassdeffounderror-java-sql-timestamp/28908/12 "2022-07-20T13:43:18Z")
So, you’ll need to look in the launcher’s log file where it reports the final java command line it used. Copy that and run it in a terminal. You should then have logging in the terminal that should show where it gets stuck.