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Fatal error: Cannot declare class - Joomla 3.7

Søren Beck Jensen

Administrator

Posts: 81

7 år 6 månader sedan - 7 år 6 månader sedan #1553 av Søren Beck Jensen

Fatal error: Cannot declare class - Joomla 3.7 skapades av Søren Beck Jensen

Hi all,

We realize that Joomla 3.7 causes issues with components. We have already fixed Component Creator to work around this issue in Joomla so you can simply rebuild your component.

If you have made modifications to your component and can't just rebuild here is a solution to fix the issue manually.

If your component is called "com_example":

Rename /administrator/com_example/helpers/example.php to exampleadmin.php
Add the following string to the bottom of the file
```
// Ensure custom fields compatibility
class ExampleHelper extends ExampleHelpersExampleadmin {}
```
Remember to rename "Example" with the name of your component.
Perform a search and replace in the folder (and sub folders) /administrator/components/com_example/ Search for ExampleHelpersExample and replace with ExampleHelpersExampleadmin

It is important to ONLY perform the search and replace in the /administrator/com_example/ folder (and sub folders).

We are sorry for the inconvenience this Joomla issue may have caused you.

Søren Beck Jensen
Founder, Component-Creator.com

Last edit: 7 år 6 månader sedan by Søren Beck Jensen. Orsak: Adding compatibility with custom fields

Följande användare sa tack: Noxidsoft - Noel Dixon, George Taylor

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Janne Riihimäki

New Member

Posts: 1

7 år 6 månader sedan #1562 av Janne Riihimäki

Svar från Janne Riihimäki i ämnet Fatal error: Cannot declare class - Joomla 3.7

Do you have idea if this issue will remain or be fixed in upcoming 3.7.1 for example?

Any other problems affecting component creator like these mentioned here: www.akeebabackup.com/home/news/1676-joom...and-cli-scripts.html

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Izhar Aazmi

New Member

Posts: 1

7 år 6 månader sedan #1563 av Izhar Aazmi

Svar från Izhar Aazmi i ämnet Fatal error: Cannot declare class - Joomla 3.7

Hi Søren,

Can you please tell us which change in Joomla 3.7 caused this and any other compatibility break?

PS: I'd suggest to change the title of this page as the it causes to think for a moment as if something is broken here

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TechLabPro

New Member

Posts: 1

7 år 6 månader sedan #1564 av TechLabPro

Svar från TechLabPro i ämnet Fatal error: Cannot declare class - Joomla 3.7

Hello,

Please check detail page by enabling "Search Engine Friendly URLs"

Now issue is no data showing in detail page.

See my screenshot prntscr.com/f37ihf

Please fix this issue I submit support request last week but don't get any reply.

Thanks

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Gosling Cools

Junior Member

Posts: 20

7 år 6 månader sedan - 7 år 6 månader sedan #1565 av Gosling Cools

Svar från Gosling Cools i ämnet Fatal error: Cannot declare class - Joomla 3.7

H Soren,

What if I upgraded Joomla to 3.7 and the custom components are NOT showing that Fatal error?
I have many sites with JCC all upgraded to Joomla 3.7, but not seen this Fatal error yet.
Even while Error Reporting is set to Development.

And should you not rename that file in the view.html.php files?

protected function addToolbar() {
        require_once JPATH_COMPONENT . '/helpers/example.php';

to
  require_once JPATH_COMPONENT . '/helpers/exampleadmin.php';

And only change the classname once in exampleadmin.php from ExampleHelpersExample to ExampleHelpersExampleadmin

Can you explain that? Or am I using very old JCC code?

Regards,

Gosling

Last edit: 7 år 6 månader sedan by Gosling Cools.

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Cesar Campo

New Member

Posts: 3

7 år 6 månader sedan #1567 av Cesar Campo

Svar från Cesar Campo i ämnet Fatal error: Cannot declare class - Joomla 3.7

I was not getting that error, I renamed the helper file anyway (step 1),
now on step 2 there's a note that says "It is important to ONLY perform the search and replace in the /administrator/com_example/ folder" if I do that I'm not getting any search results, but if I do recursive search starting with that folder it returns several hits.
So, I just want to confirm the search is not recursive right ? Maybe that's the reason I'm not affected by this ?

Thanks,

Cesar

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