Re: [Evolution] Failed to Open (EWS) Calendar

[Milan Crha <mcrha redhat com>]

On Fri, 2017-05-05 at 13:05 -0400, Benjamin Selzer wrote:
> My god, nothing but endless problems with Evolution since updating to
> Gnome 3.24.

        Hi,
that's not fair. It was a problem in libsoup and that change had been
reverted in the upstream. The only problem was that it got to stable
release unnoticed. But apart of "being able to reproduce in evolution(-
ews)", there was really nothing wrong on the Evolution side.

> Then today, EWS calendar stopped working. 
>
> Unable to connect to “Calendar”: Backend factory for source
> “1492881450.6684.6@xps13” and extension “Calendar” cannot be found.

It looks like evolution-ews installation or the source file itself got
broken for whatever reason. Try to run evolution from a terminal,
eventually evolution-calendar-factory, to see whether it says anything
related.

You can also search for the source file, it'll be named as in the error
message plus ".source" extension, thus in your case
"1492881450.6684.6@xps13.source" in one of:
   ~/.cache/evolution/sources/
   ~/.config/evolution/sources/
and look into its content. It is supposed to contain at least these
sections:

   [Data Source]
   DisplayName=Calendar
   Enabled=true
   Parent=xxx

   [Calendar]
   BackendName=ews
   Color=#becedd
   Selected=true

   [Exchange Web Services Folder]
   ChangeKey=xxx
   Id=xxx
   Foreign=false
   ForeignSubfolders=false
   Public=false

where those 'xxx' are different for your calendar, similarly the Color
key. The most important is the BackendName, which should reference
"ews".

        Hope it helps,
        Milan