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"This plugin does not have a valid header" – WordPress V3.3.1

UN
Unknown
Member

Hello.

I’ve downloaded your lastest V5.0 release from your website and attempted to install in on my wordpress blog, unfortunately, something has gone belly-up. I chose to install the WP plug in using the “upload zip file” route from within WP admin. I have absolutely no idea why the plug-in has failed to complete installation correctly.

 

I am using WP-Clear V3.0 theme on my site, I don’t know if this makes any difference?

 

Please can you shed some light on my issue.

Many thanks in advance.

Eddie R.

8 Answers

New Answer

MP Mr Papa
Mr Papa
Member

did you remove the old simple-forum? and what did it extract to? you need to have simple-press directory in plugins…

DE derbydude63
derbydude63
Member

Mr Papa said

did you remove the old simple-forum? and what did it extract to? you need to have simple-press directory in plugins…

Hi, thank you for your prompt reply..

I did not have simple forum installed. This was a first-time installation. I chose to upload the zip file  – downloaded from your website to my hard drive then upload via WP admin.

“I need to have simple press directory in plug-ins?”

– I was under the impression that your plug-in created necessary directories within wp-content folders as required upon successful installation, am I wrong?

WP informs me the plug in has successfully been installed but when I choose to activate the plugin I get  – This plugin does not have a valid header.

I hope this explains it more clearly.

I welcome your suggestions.

Best regards,

Eddie

MP Mr Papa
Mr Papa
Member

I understand your issue. it should create what it needs but the wp zip loader has been problematic..

my question was after it said it was done, did the wp-content/plugins/simple-press folder get created…

the invalid header is normally from a corrupted upload… do you know what you php.ini max file upload setting is?

so I would remove it (if its there) and try again… but personally, I would ftp everything up instead of using the wp thing…

BO BostonGal
BostonGal
Member

I’ve ftp’d the plugin, the old version gone and still get this error:  Fatal error: Cannot redeclare sp_get_option() (previously declared in /problem-with-post-edit-buttonome/farr/public_html/wp-content/plugins/the-events-calendar/lib/template-tags-deprecated.php:236) in /problem-with-post-edit-buttonome/farr/public_html/wp-content/plugins/simple-press/sp-api/sp-api-primitives.php on line 91

It appears to have a conflict the The Events Calendar plugin…..I need both.

MP Mr Papa
Mr Papa
Member

egads… not much we can do about that… surprised it hasnt happend before… but we are not likely to rename all our stuff…

YS Yellow Swordfish
Yellow Swordfish
Member

the name of that folder – deprecated – suggests it might be ok to remove it perhaps?

BO BostonGal
BostonGal
Member

I can try another events plugin…I got that header error first, got that fixed then that error came up.  Love the new version of SP!

MP Mr Papa
Mr Papa
Member

thanks! its unfortunate, but I guess lucky, it hasn’t happened before.