# Server start Error **URL:** \ **Category:** Support\ **Created:** [June 22, 2023, 1:10pm UTC](https://community.stardog.com/t/server-start-error/4433 "2023-06-22T13:10:57Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![RolandR](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@RolandR](https://community.stardog.com/u/RolandR)\ **Post date:** [June 22, 2023, 1:10pm UTC](https://community.stardog.com/t/server-start-error/4433/1 "2023-06-22T13:10:57Z")
Hello! After starting startdog-server on my Ubuntu Server i get the following error: ERROR 2023-06-22T12:20:40,381+0000 [main] com.complexible.stardog.protocols.http.server.StardogHttpServiceLoader:createService(132): Unable to create an instance of HttpService class com.complexible.stardog.protocols.http.cache.server.CacheHttpService, missing compatible constructor. I really can't understand it and don't know where to start checking. Regards, Roland ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 22, 2023, 1:29pm UTC](https://community.stardog.com/t/server-start-error/4433/2 "2023-06-22T13:29:03Z")
Greetings Roland, What version of Ubuntu? What version of Java? And how are you starting the server? Matthew ---
**Author:** ![RolandR](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@RolandR](https://community.stardog.com/u/RolandR)\ **Post date:** [June 22, 2023, 1:48pm UTC](https://community.stardog.com/t/server-start-error/4433/4 "2023-06-22T13:48:54Z")
Hello Matthew, i am using Ubuntu 22.04.1 LTS, Java openjdk 11.0.19 2023-04-18 and starting the server using the command "./stardog-admin server start" in my stardog-9.0.1/bin folder. EDIT: i found the following message in the logs: ERROR 2023-06-22T14:13:57,345+0000 [main] com.complexible.stardog.protocols.http.server.StardogHttpServiceLoader:createService\> ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 22, 2023, 2:30pm UTC](https://community.stardog.com/t/server-start-error/4433/5 "2023-06-22T14:30:09Z")
Roland, This is odd. Would you be able to send the stardog.log file via a direct message to me? Matthew ---
**Author:** ![RolandR](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@RolandR](https://community.stardog.com/u/RolandR)\ **Post date:** [June 22, 2023, 3:02pm UTC](https://community.stardog.com/t/server-start-error/4433/6 "2023-06-22T15:02:29Z")
Certainly, but I really can't find the option to send a private message… EDIT: i unlocked the private message function. 🙂 ---
**Author:** ![Kheder\_Taleb](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/kheder_taleb/32/1799_2.png) [@Kheder\_Taleb](https://community.stardog.com/u/Kheder_Taleb)\ **Post date:** [June 22, 2023, 3:32pm UTC](https://community.stardog.com/t/server-start-error/4433/7 "2023-06-22T15:32:50Z")
I had the same error, also I use Ubuntu LTS 22.04 and Stardog 9.0.1, in addition I tried with java 11, java 17 and java 20, but still having the same issue: **ERROR 2023-06-22T12:20:40,381+0000 [main] com.complexible.stardog.protocols.http.server.StardogHttpServiceLoader:createService(132): Unable to create an instance of HttpService class com.complexible.stardog.protocols.http.cache.server.CacheHttpService, missing compatible constructor.** Please if you find any solution share it with us ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 22, 2023, 6:34pm UTC](https://community.stardog.com/t/server-start-error/4433/8 "2023-06-22T18:34:15Z")
Roland, I have the stardog.log file, thank you. Sadly no big clues jumping out. From where did you download the program? I want to make sure I am using the exact build as you. Matthew ---
**Author:** ![RolandR](https://avatars.discourse-cdn.com/v4/letter/r/8e7dd6/32.png) [@RolandR](https://community.stardog.com/u/RolandR)\ **Post date:** [June 22, 2023, 6:44pm UTC](https://community.stardog.com/t/server-start-error/4433/9 "2023-06-22T18:44:40Z")
Hi, i followed exactly this tutorial: [Install from Zip | Stardog Documentation Latest](https://docs.stardog.com/install-stardog/install-from-zip). ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 22, 2023, 7:22pm UTC](https://community.stardog.com/t/server-start-error/4433/10 "2023-06-22T19:22:47Z")
Sadly, the download works for me. Would you upload your license file to my via private message? Still trying to isolate the problem source. Matthew ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 22, 2023, 11:51pm UTC](https://community.stardog.com/t/server-start-error/4433/11 "2023-06-22T23:51:54Z")
Roland, I have duplicated your issue. It is related to the license file. It will be tomorrow (Friday) before I can consult with colleagues on a fix. Matthew ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 23, 2023, 1:38pm UTC](https://community.stardog.com/t/server-start-error/4433/12 "2023-06-23T13:38:19Z")
Roland, Your license has 3 features intentionally disabled: geospatial, LDAP, and caching. Some how the intentional disabling of caching has started causing this error message. We will fix that message in a subsequent release. You should be able to safely ignore that error message and use Stardog for your investigations. Good luck, Matthew ---
**Author:** ![matthewv](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/matthewv/32/1494_2.png) [@matthewv](https://community.stardog.com/u/matthewv)\ **Post date:** [June 27, 2023, 3:16pm UTC](https://community.stardog.com/t/server-start-error/4433/13 "2023-06-27T15:16:59Z")
This error message is limited to users that have a "community license". The error message is incorrect. A correction to the code did not make the 9.1.0 release, but will be present in a subsequent release. Again, apologies for the confusion.