I've installed openstack in my server, after that I used JCloud (cloudwatt) from my computer (client) to connect to my OpenStack via API to create an instance....etc. I have been following cloudwatt site sample.

Everything seem ok until I try creating network, because I've checked in my openstack dashboard and see that it's already created keypair, security group, and network name but without Subnets. I get the error below and of course the instance cannot be created.

22:57:34.808 [main] DEBUG jclouds.wire - << "{"network": {"status": "ACTIVE", "subnets": [], "name": "jcnetwork", "provider:physical_network": null, "admin_state_up": true, "tenant_id": "88aa7a7d4f8c4c3c8df8a985da345858", "provider:network_type": "vxlan", "shared": false, "id": "50d8aad3-11cd-48fb-8a45-af7da3d7f1d4", "provider:segmentation_id": 1003}}"
Exception in thread "main" java.lang.IllegalArgumentException: No enum constant org.jclouds.openstack.neutron.v2_0.domain.NetworkType.VXLAN
    at java.lang.Enum.valueOf(Enum.java:236)
    at org.jclouds.openstack.neutron.v2_0.domain.NetworkType.valueOf(NetworkType.java:26)
    at org.jclouds.openstack.neutron.v2_0.domain.NetworkType.fromValue(NetworkType.java:40)
    at org.jclouds.openstack.neutron.v2_0.domain.Network.<init>(Network.java:57)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
    at com.google.common.reflect.Invokable$ConstructorInvokable.invokeInternal(Invokable.java:242)
    at com.google.common.reflect.Invokable.invoke(Invokable.java:102)
    at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.newInstance(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:215)
    at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:195)
    at com.google.gson.Gson.fromJson(Gson.java:803)
    at org.jclouds.http.functions.ParseFirstJsonValueNamed.apply(ParseFirstJsonValueNamed.java:83)
    at org.jclouds.http.functions.ParseFirstJsonValueNamed.apply(ParseFirstJsonValueNamed.java:47)
    at org.jclouds.rest.internal.InvokeHttpMethod.invoke(InvokeHttpMethod.java:93)
    at org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:76)
    at org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:47)
    at org.jclouds.reflect.FunctionalReflection$FunctionalInvocationHandler.handleInvocation(FunctionalReflection.java:117)
    at com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:79)
    at $Proxy78.create(Unknown Source)
    at vn.openstack.cloud.OpenstackClient.createNetwork(OpenstackClient.java:126)
    at vn.openstack.cloud.Cloudwatt.main(Cloudwatt.java:37)

Please help me, thanks you so much