# Cannot do anything with virtual graphs

**URL:** <https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389>\
**Category:** Support\
**Created:** [June 8, 2017, 2:00pm UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389 "2017-06-08T14:00:51Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![cordawyn](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/cordawyn/32/39_2.png) [@cordawyn](https://community.stardog.com/u/cordawyn)\
**Post date:** [June 8, 2017, 2:00pm UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/1 "2017-06-08T14:00:51Z")

</div>

Hi!

Today, some time since my latest successful attempts of playing around with virtual graphs, I tried some basic things using “stardog-admin” CLI tool, but nothing seems to work anymore.

```auto
$ stardog-admin virtual list -v

Unknown or unsupported command type 'List', cannot execute.
The detailed stack trace for the error is:
com.complexible.stardog.StardogException: Unknown or unsupported command type 'List', cannot execute.
	at com.complexible.stardog.protocols.http.client.BaseHttpClient.checkResponseCode(BaseHttpClient.java:433)
	at com.complexible.stardog.protocols.http.client.BaseHttpClient.execute(BaseHttpClient.java:304)
	at com.complexible.stardog.protocols.http.client.BaseHttpClient.executeHttpGet(BaseHttpClient.java:517)
	at com.complexible.stardog.protocols.http.client.HttpVirtualGraphAdminClientImpl.getGraphs(HttpVirtualGraphAdminClientImpl.java:69)
	at com.complexible.stardog.protocols.http.client.HttpVirtualGraphAdminClientImpl.getGraphs(HttpVirtualGraphAdminClientImpl.java:53)
	at com.complexible.stardog.protocols.virtual.AbstractVirtualGraphAdminConnection.getGraphs(AbstractVirtualGraphAdminConnection.java:50)
	at com.complexible.stardog.virtual.cli.VirtualGraphList.performSecure(VirtualGraphList.java:37)
	at com.complexible.stardog.cli.admin.SecureStardogAdminCommand.call(SecureStardogAdminCommand.java:58)
	at com.complexible.stardog.cli.CLIBase.execute(CLIBase.java:55)
	at com.complexible.stardog.cli.admin.CLI.main(CLI.java:182)

```

Similar error message is output for other subcommands of “virtual”:

```auto
Unknown or unsupported command type 'Add', cannot execute.

```

`stardog-admin help virtual` or `stardog-admin help virtual add` show the help text without problems though. Neither release notes or documentation page mention any bugs/fixes related to this. I wonder what happened.

I’m using `stardog-4.2.3`, community edition, on Linux.

---

<div class="post-metadata">

**Author:** ![zachary.whitley](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/zachary.whitley/32/94_2.png) [@zachary.whitley](https://community.stardog.com/u/zachary.whitley)\
**Post date:** [June 8, 2017, 2:07pm UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/2 "2017-06-08T14:07:36Z")

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Is there any possibility that you installed 5.0 and are either using the 5.0 client to access a 4.2.3 server or the 4.2.3 client to access a 5.0 server?

If you did install 5.0 I would check which client with `which stardog-admin`

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**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\
**Post date:** [June 8, 2017, 2:21pm UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/3 "2017-06-08T14:21:58Z")

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> [@cordawyn](#):
>
> I'm using stardog-4.2.3, community edition, on Linux.

Hi there. Virtual graphs are not enabled with a Community license. You would need to run with a Developer/Enterprise license or trial.

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<div class="post-metadata">

**Author:** ![cordawyn](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/cordawyn/32/39_2.png) [@cordawyn](https://community.stardog.com/u/cordawyn)\
**Post date:** [June 8, 2017, 3:00pm UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/4 "2017-06-08T15:00:24Z")

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No, I stayed with 4.2.3 since it was released, so 5.0 incompatibility should not be the issue.

But as Stephen points out later, I might need to get a developer/enterprise license now to use virtual graphs.

Would really appreciate it if the error messages said so in the first place 🙂

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<div class="post-metadata">

**Author:** ![cordawyn](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/cordawyn/32/39_2.png) [@cordawyn](https://community.stardog.com/u/cordawyn)\
**Post date:** [June 9, 2017, 10:34am UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/5 "2017-06-09T10:34:33Z")

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I got stardog-5.0 rc1 enterprise trial version. The virtual graphs are working now.  
Thanks!

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\
**Post date:** [June 23, 2017, 10:34am UTC](https://community.stardog.com/t/cannot-do-anything-with-virtual-graphs/389/6 "2017-06-23T10:34:57Z")

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