When activating: An error occurred

[EdwinKort]

Tried installing this from the plugin list on my piwigo install, but the above error occurred. Then tried install the plugin with the following commands:
` wget -O piwigo-openstreetmap.zip https://github.com/xbgmsharp/piwigo-openstreetmap/archive/master.zip

unzip piwigo-openstreetmap.zip

mv piwigo-openstreetmap-master piwigo-openstreetmap`

which ended with the same error message.

Plugin is version 15D, I believe. Piwigo is running from my Synology NAS.

Piwigo 15.6.0 [Check for upgrade]
Installed on 9 August 2025, 3 days ago
Operating system: Linux
PHP: 8.3.19 ([Show info]
MySQL: 11.4.5-MariaDB-ubu2404 [2025-08-12 23:22:49]
Graphics Library: ImageMagick ImageMagick 7.1.1-41
Cache size 19.88 Mo   calculated 3 days ago Refresh
Activated plugin list23
About 1 menu
Add Index
Additional Pages
Admin Tools
Advanced Menu Manager
Bot Protection
Contact 1 menu
Contact Form
Custom Download Link
EditorPlus
Exif View
Extended Description
FCK Editor
Grum Plugins Classes.3
LocalFiles Editor
Permalink Generator
Perso About
Perso Footer
PWG Stuffs
Search 1 menu
Show Photo Identifier
Simple Copyright
Stop Spammers

[deomaki]

Was this a fresh install or did you try to migrate from another system to your NAS?

[Damien0505]

I am receiving the same error when trying to activate the plugin on a fresh install of 16.1.0 on a Proxmox VM running Ubuntu 22.04LTS

[henkux]

Moving from piwigo.com to my NAS, I encountered the same error on activating the plugin.

I'm running Piwigo 16.2 in Docker/Portainer. Installed it using the instructions of Marius hosting dot com.

Selecting Configuration in the plugin results in the message Invalid URL - plugin piwigo-openstreetmap not active.

[deomaki]

Did you install piwigo completely from scratch on your NAS and then copied all other folders (including(!) the folder with the plugins) completely over to the NAS, or did you install Piwigo from scratch on your NAS and the only copied your user data (images, albums, etc.) and then reinstalled the plugins afterwards?

[henkux]

Rebuild piwigo from scratch, installing plugins, changing css, creating albums and exporting photos to piwigo using Darktable.

[deomaki]

Oops, then I'm out. My problem was that I followed instructions that said to also ‘migrate’ the plugin directory. That doesn't work; Piwigo doesn't like it. But you said you reinstalled everything completely...mmhhh

[tanty]

Same here.

I'm running piwigo through the container provided by linuxserver.io. This is the error in the nginx log:

2026/02/25 23:48:45 [error] 338#338: *762 FastCGI sent in stderr: "PHP message: PHP Warning:  file_put_contents(./osmmap.php): Failed to open stream: Permission denied in /config/www/plugins/piwigo-openstreetmap/maintain.class.php on line 164; PHP message: PHP Fatal error:  Uncaught Error: Class "SmartyException" not found in /config/www/plugins/piwigo-openstreetmap/maintain.class.php:167
Stack trace:
#0 /app/www/public/admin/include/plugins.class.php(139): piwigo_openstreetmap_maintain->install()
#1 /app/www/public/admin/include/plugins.class.php(191): plugins->perform_action()
#2 /app/www/public/include/ws_functions/pwg.extensions.php(76): plugins->perform_action()
#3 /app/www/public/include/ws_core.inc.php(605): ws_plugins_performAction()
#4 /app/www/public/include/ws_protocols/rest_handler.php(41): PwgServer->invoke()
#5 /app/www/public/include/ws_core.inc.php(281): PwgRestRequestHandler->handleRequest()
#6 /app/www/public/ws.php(22): PwgServer->run()
#7 {main}
  thrown in /config/www/plugins/piwigo-openstreetmap/maintain.class.php on line 167" while reading response header from upstream, client: ANONYMIZED

I'm not familiar with the code of the plugin but it looks like it's trying to write the code of the plugin in the root directory of the Piwigo installation? (!!!)

• piwigo-openstreetmap/maintain.class.php

  Line 164 in d06ed2a

  if (!file_put_contents(PHPWG_ROOT_PATH.'osmmap.php', $c)) {