FAQ

General FAQ

• I am having trouble running the samples, what can I do to debug them?
• When I select an example to import into the Node-RED UI, why does nothing appear to happen?

General

Q: I am having trouble running the samples, what can I do to debug them?

A: The following steps are generally useful for debugging the client/samples:

• Ensure that the prerequisites for the OpenDXL JavaScript Client have been met.
• Look for dxl-related messages in the Node-RED log file. For example, you may see a message similar to the following if a missing or incomplete DXL client configuration has been associated with any DXL nodes:

  [error] [dxl-client:8c971a39.52eda] DxlError: Unable to read config file: ENOENT: no such file or directory, open '/root/.node-red/dxlclient.config'
  [error] [dxl-core-event out:Send event to DXL fabric] Missing client configuration
  

Q: When I select an example to import into the Node-RED UI, why does nothing appear to happen?

A: A fix was delivered in the Node-RED 0.18.0 release which allows the DXL examples to be imported properly in the UI. If you are using an older version of Node-RED, try upgrading to the newer version.