Page created:
Jun 17, 2009 (? ago)
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Error Console

See Uniteness for better way to handle errors.
Error Console is a way to debug your Opera Unite apps.

Before you use Error Console, you need to enable Stack Trace:

Enable Stack Trace

Open the URL opera:config#UserPrefs|Exceptions Have Stacktrace, put a checkbox in "Exceptions Have Stacktrace", don't forget to push "Save" button below. This will make errors in Error Console readable.

Synax errors can be found only after you pushed "Stop service" -> "Start service" and then checked Error Console (without reloading the page).

Error Console

You can try to find out what the problem is in "Error Console", it is located at
Tools -> Advanced -> Error Console.
This is the recommended method for now.


You can try to use DragonFly's Error Console (and other tools too), but it's a bit quirky for me (sometimes don't show errors until I select the same context).

DragonFly is located in:
Tools -> Advanced -> Developer Tools 
You can switch to "Error Console".

Important: Choose JavaScript errors context in DragonFly. Usually it's the lowest of all, definitely one that says "widget://".

opera.postError(...) posts error to Error Console too.

Slava V. [about me]

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  13. Application Examples
  14. How to Debug Opera Unite apps
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  17. From PHP to Opera Unite
  18. Uniteness (Framework)
  19. Config.xml
  20. Key-value storage
  21. Widget Object
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  23. Reset (debug)
  24. Cron example
  25. What I meant by CNAMEs
  26. Wish List
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  30. GET/POST data
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  32. Opera object
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  35. Error Console
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  39. Yusef library
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  41. Javascript Imports
  42. onunload / _close
  43. fileio: Sandboxed Filesystem
  44. Request Hierarchy (like php_info)
  45. Intro: Web Apps with Opera Unite