# Facing Error while restarting Stardog server after creating a Virtual Graph **URL:** https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772 **Category:** Support **Created:** [October 31, 2020, 10:16pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772 "2020-10-31T22:16:49Z") **Posts on this page:** 5 **Page:** 1
### Author: ![Ashique](https://avatars.discourse-cdn.com/v4/letter/a/5daacb/32.png) [@Ashique](https://community.stardog.com/u/Ashique) #### Post date: [October 31, 2020, 10:16pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772/1 "2020-10-31T22:16:49Z")
I am using Stardog Server for Windows, version 7.4.2. Below are the sequence of activities I did perform and also the error faced- 1. Started the Stardpg server. 2. Created a database. 3. Created a Virtual Graph from a mapping sms file connecting my MySQL Localhost. 4. Stopped the Stardog server and then tried to start it again, Faced the below error- The error is a lengthy one. 5 errors been displayed one after other. So tried to put the first paragraph of the same in here. **Error:** There was an error initializing Stardog; one or more dependencies could not be satisfied. Please verify your classpath is correct. The initialization errors were: - ``` Error injecting constructor, com.complexible.stardog.StardogException: com.complexible.stardog.StardogException: com.stardog.stark.impl.IRIImpl cannot be cast to java.lang.Comparable com.complexible.stardog.cache.CachedDatasetRegistryStore.() com.complexible.stardog.cache.db.CacheConnectableFactory.() com.complexible.stardog.virtual.VirtualGraphService.() com.complexible.stardog.virtual.DefaultVirtualGraphRegistry com.complexible.stardog.plan.eval.service.DefaultServiceRegistry.() com.complexible.stardog.db.DatabaseFactoryImpl com.complexible.stardog.virtual.VirtualGraphModule.configure(VirtualGraphModule.java:52) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.virtual.VirtualGraphModule) com.complexible.stardog.virtual.DefaultVirtualGraphRegistry.() com.complexible.stardog.cache.DefaultCachedDatasetRegistry.() com.complexible.stardog.plan.eval.service.DefaultServiceRegistry com.complexible.stardog.StardogKernel com.complexible.stardog.BaseStardogModule.configure(BaseStardogModule.java:145) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.BaseStardogModule) com.complexible.stardog.cache.db.CacheModule.configure(CacheModule.java:25) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.cache.db.CacheModule) com.complexible.stardog.cache.db.CacheModule.configure(CacheModule.java:24) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.cache.db.CacheModule -> com.google.inject.multibindings.Multibinder$RealMultibinder) com.complexible.stardog.db.DatabaseFactoryImpl.() com.complexible.stardog.cache.CachedDatasetRegistryStore com.complexible.stardog.StardogKernel.() com.complexible.stardog.virtual.VirtualGraphService com.complexible.stardog.cache.DefaultCachedDatasetRegistry com.complexible.stardog.cache.db.CacheConnectableFactory com.complexible.stardog.virtual.VirtualGraphModule.configure(VirtualGraphModule.java:45) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.virtual.VirtualGraphModule) com.complexible.stardog.cache.db.CacheModule.configure(CacheModule.java:20) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.cache.db.CacheModule) com.complexible.stardog.search.waldo.WaldoModule.configure(WaldoModule.java:49) (via modules: com.google.inject.util.Modules$OverrideModule -> com.complexible.stardog.search.waldo.WaldoModule -> com.google.inject.multibindings.Multibinder$RealMultibinder) ``` ![mysql issue3](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/1X/005679e65b37f4832e899d14d9a69b44e564691b.jpeg) Any help would be greatly appreciated ---
### Author: ![jess](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/jess/32/10_2.png) [@jess](https://community.stardog.com/u/jess) #### Post date: [October 31, 2020, 10:33pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772/2 "2020-10-31T22:33:20Z")
Hi Ashique! Thanks for reporting this. Are you able to share the full log or exception trace? It's a little bit longer than you've shared here. Thanks. Jess ---
### Author: ![Ashique](https://avatars.discourse-cdn.com/v4/letter/a/5daacb/32.png) [@Ashique](https://community.stardog.com/u/Ashique) #### Post date: [October 31, 2020, 10:37pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772/3 "2020-10-31T22:37:42Z")
[stardog\_server\_err.log](https://community.stardog.com/uploads/short-url/gvz4jfFHdetX75Du2PhMfVfMxUH.log) (117.5 KB) Hi Jess, Thanks for the prompt reply. I have attached the full error log. Ashique ---
### Author: ![jess](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/jess/32/10_2.png) [@jess](https://community.stardog.com/u/jess) #### Post date: [November 2, 2020, 11:45pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772/4 "2020-11-02T23:45:05Z")
Thanks for the report and log file. We have isolated this bug and created issue PLAT-1736. It will be fixed in the next release. ---
### Author: ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system) #### Post date: [November 16, 2020, 11:45pm UTC](https://community.stardog.com/t/facing-error-while-restarting-stardog-server-after-creating-a-virtual-graph/2772/5 "2020-11-16T23:45:12Z")
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