FAQ

General FAQ

• I am having trouble running the samples, what can I do to debug them?
• I receive no response or an error, "Error ... Invalid Command.", when attempting to invoke a valid ePO command via DXL
• I receive an error similar to the following, "Error ... unable to locate service for request", when attempting to invoke an ePO command via DXL

General

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

A: Ensure that the prerequisites for the ePO DXL client have been met.

Q: I receive no response or an error, "Invalid Command.", when attempting to invoke a valid ePO remote command via DXL

A: This typically occurs due to the JavaScript client not having permission to send the remote command to the ePO server.

The following page provides information about authorizing clients to access the ePO DXL service:

https://opendxl.github.io/opendxl-epo-client-python/pydoc/authorization.html

Q: I receive an error similar to the following, "Error ... unable to locate service", when attempting to invoke an ePO command via DXL

A: There are a couple common reasons why this error occurs:

• The ePO DXL service is not running.
• The uniqueId specified in the request (last portion of the request topic) does not match an ePO server currently exposed to the DXL fabric.