MT5 Beta 3 Error: Undefined subroutine &MT::Template::Context::_hdlr_link called

... this may be because I copied templates from my 4.3.1 installation; but I'm not sure which tags -- if that's actual issue -- are incompatible.

It's likely an FTP issue. MT5 broke up MT::Template::ContextHandler into smaller files to address memory use issues, and you may need to clean out the lib directory and reupload it.

I should add - by upgrade I do not mean copy into the same directory – just the database. Does not appear to be anything to do with my previous templates as I am not longer using them. If I rebuild the index templates the Edit template button takes me to the Feed - Recent entries template. If I rebuild Only page archives it takes me to the Page template:

-




MT.entryID = ;
MT.commentsPerPage = ;
MT.entryCommentCount = ;
MT.commentIds = [];

​

Oops

<$mt:Var name="page_layout" value="layout-wm"$>
<mt:SetVarBlock name="nav_on"><$mt:PageID$></mt:SetVarBlock>

<mt:SetVarBlock name="title"><$mt:PageTitle encode_html="1"$> - <$mt:BlogName encode_html="1"$></mt:SetVarBlock>

<mt:SetVarBlock name="html_head">

<$mt:Var name="comments_per_page" value="50"$>

<mt:If tag="EntryCommentCount" gt="$comments_per_page">

    <script type="text/javascript">

        MT.entryID = <$mt:PageID$>;

        MT.commentsPerPage = <$mt:Var name="comments_per_page"$>;

        MT.entryCommentCount = <$mt:EntryCommentCount$>;

        MT.commentIds = [<mt:Comments sort_order="ascend" glue=","><mt:CommentID></mt:Comments>];

    </script>

</mt:If>

    <$mt:EntryTrackbackData$>

</mt:SetVarBlock>

<$mt:Include module="Header" body_class="mt-page-archive"$>

<$mt:Include module="Page Detail"$>

<$mt:Include module="TrackBacks"$>

<$mt:Include module="Comments"$>

<$mt:Include module="Footer"$>

​

Retesting has demonstrated that "Undefined subroutine &MT::Template::Context::_hdlr_link called" is nothing to do with old templates. I guess I’ll just have to wait until MT5 is actually released.

I'm still getting this error at MT5.01 ...
I've tried reverting templates & removing all plugins ...

Is there a log that MT generates to try to debug these type of (vague) errors?

I had the same error after upgrading, and it was due to a plug-in. In my case it was Gizmos - when I removed it from the /plugins/ directory, everything worked again.

If you can search across all the files in your plugins directory for any that refer to "_hdlr_link" you might find the culprit.

Same issue, with: _hdlr_if_comments

My issue turned out to be with (sadly) Disqus plugin. Hoping we can fix soon.

Thanks for the info, everyone!

Hi Eric, I'm having the similar issues with Disqus plugin as well. I get

"Undefined subroutine &MT::Template::Context::_hdlr_if_comments_accepted called"

I've resorted to switching it off, publishing a post, switching it back on, then publishing again until it shows the error.

The first time I publish I see the default MT comment form and sign in. The second I see the disqus one. No idea what is causing it but have emailed help@disqus.com to see if they can resolve it.

Been told by Disqus that their plugin is currently not MT5 compatible but that they are working on an updated version.