[SOLVED] Transition Graph: Error creating renderer: java.lang.NullPointer...
Hello,
I want to use the Transition Graph Operator, but I'm not able to get it working. I have two string attributes containing my nodes (source and target) and an additional real-valued strength attribute.
After my first try I got the error message that an id-attribute is needed. I don't really get why an id is needed, but I just generated one. Now my process executes, but I can not view the graph, it shows: "Error creating renderer Graph View (see log)".
In the log there is "WARNING: Error creating renderer: java.lang.NullPointerException".
I'm not sure if it is a bug or I'm using it in a wrong manner, because I did not find examples using it. Can you help me?
Best regards,
Christian
I want to use the Transition Graph Operator, but I'm not able to get it working. I have two string attributes containing my nodes (source and target) and an additional real-valued strength attribute.
After my first try I got the error message that an id-attribute is needed. I don't really get why an id is needed, but I just generated one. Now my process executes, but I can not view the graph, it shows: "Error creating renderer Graph View (see log)".
In the log there is "WARNING: Error creating renderer: java.lang.NullPointerException".
I'm not sure if it is a bug or I'm using it in a wrong manner, because I did not find examples using it. Can you help me?
Best regards,
Christian