Hello and congatulations for this awesome work. Yesterday I updated to 1.5.0 but bumped onto this problem when go to download an invoice. I see my settings at Settings>Invoices>Invoice Template are set correct, at least are set as with the previous version.
Is there any way to fix this?
Thanx in advance for any replies. 
This is quite interesting. This error should only appear if the wrong version of mPDF is loaded. However, it is working without problems for me. Could you please verify that the setting “Enable Zugferd XML” in the invoice settings is turned off (if you don’t need it)?
Hi again, the Zugferd XML was set to on, I set it to off and was able to download the invoice but the template was quite strange it was not a nice to see invoice, just a listing with numbers
Kovah, do you think I should try to make a clean installation or there is a point to look this up; To be honest Iam not in a hurry to invoice.
Thnx
You may send me an example of the output or post it here. Maybe it contains mor information about the cause for this problem.
I have the same error too and disabling it stops the error but it would be nice to have the option turned on so my clients can make use of the additional metadata this class provides
PDF download is able only when I have Zugferd disabled, when I enable Zugferd then it shows this nice red page with the error description.
While Zugferd disabled here is a screenshot of the PDF
And here is a web Guest URL screenshot which also shows some php errors inside the invoice,
A PHP Error was encountered
Severity: Notice
Message: Undefined property: stdClass::$invoice_item_total
Filename: public/InvoicePlane_Web.php
Line Number: 185
Backtrace:
File: /var/www/invoiceplane/html/application/views/invoice_templates/public/InvoicePlane_Web.php
Line: 185
Function: _error_handler
File: /var/www/invoiceplane/html/application/third_party/MX/Loader.php
Line: 404
Function: include
File: /var/www/invoiceplane/html/application/third_party/MX/Loader.php
Line: 365
Function: _ci_load
File: /var/www/invoiceplane/html/application/modules/guest/controllers/View.php
Line: 58
Function: view
File: /var/www/invoiceplane/html/index.php
Line: 333
Function: require_once
Please update your web template. The variable does not exist anymore.
I updated the …/views directory with a fresh one, now is ok with the web view. Still some problems with the .pdf but it seems its something between my hardcoded templates and the new version (compatibility;)…maybe;
I will try to fix it and post results.
Thank you for your support and such a great and neat work!
Well I found that there was a problem using my invoice templates from the old installation with the new one. Using the 1.5.0 templates solved the problem also with the pdf view.
Thank you for supporting
Cannot reproduce thie error regarding the Zugferdxml class as the file should not exist in any version > 1.5.0. Also, testing the feature does not throw this error.
I am running invoiceplane 1.5.4 on ubuntu 16.04 and I also have the zugferd problem.
It worked when I used 1.4.x.
This is how my log file looks like:
DEBUG - 2017-10-26 21:05:40 --> UTF-8 Support Enabled DEBUG - 2017-10-26 21:05:40 --> Global POST, GET and COOKIE data sanitized DEBUG - 2017-10-26 21:05:40 --> Invoices MX_Controller Initialized DEBUG - 2017-10-26 21:05:40 --> Config file loaded: /var/www/iplane152/application/config/invoice_plane.php DEBUG - 2017-10-26 21:05:40 --> Encryption: Auto-configured driver 'openssl'. DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/settings/models/Mdl_settings.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/controllers/../modules/layout/controllers/Layout.php DEBUG - 2017-10-26 21:05:40 --> Layout MX_Controller Initialized DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/invoices/models/Mdl_invoices.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/invoices/models/Mdl_items.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/invoices/models/Mdl_invoice_tax_rates.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_fields/models/Mdl_custom_fields.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/payment_methods/models/Mdl_payment_methods.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/payments/models/Mdl_payments.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_fields/models/Mdl_invoice_custom.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_values/models/Mdl_custom_values.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_fields/models/Mdl_client_custom.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_fields/models/Mdl_user_custom.php DEBUG - 2017-10-26 21:05:40 --> File loaded: /var/www/iplane152/application/modules/custom_fields/models/Mdl_quote_custom.php ERROR - 2017-10-26 21:05:40 --> Unable to load the requested class: Zugferdxml
When I take a look at “zugferdxml” in my installation, I find this:
# grep -ir Zugferdxml /var/www/iplane152/
/var/www/iplane152/application/helpers/zugferd_helper.php: $CI->load->library('zugferdxml', array('invoice' => $invoice, 'items' => $items));
/var/www/iplane152/application/helpers/zugferd_helper.php: write_file($path, $CI->zugferdxml->xml());
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:10:37 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:12:00 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:14:38 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:15:09 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:15:12 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-05-09.php:ERROR - 2017-05-09 17:15:20 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-10-26.php:ERROR - 2017-10-26 20:46:28 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-10-26.php:ERROR - 2017-10-26 20:59:56 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-10-26.php:ERROR - 2017-10-26 21:05:02 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-10-26.php:ERROR - 2017-10-26 21:05:40 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/logs/log-2017-09-08.php:ERROR - 2017-09-08 07:55:19 --> Unable to load the requested class: Zugferdxml
/var/www/iplane152/application/libraries/ZugferdXml.php: * Class ZugferdXml
/var/www/iplane152/application/libraries/ZugferdXml.php:class ZugferdXml
/var/www/iplane152/application/modules/invoices/controllers/Invoices.php: $this->load->library('ZugferdXml', array(
/var/www/iplane152/application/modules/invoices/controllers/Invoices.php: $this->output->set_output($this->zugferdxml->xml());
Any hint would be appreciated.
Thanks a lot
Cornelius
I still can’t reproduce this error either in version 1.5.4 or 1.5.5 which will be released in a few days.
Is the name of the class correct? “Zugferdxml”?
Where is it called?
Where is it defined?
Could it be that I am missing some PHP-pdf library in the correct version?
Is there a way to increase the debug?
Which version of PHP are you running? (I am running 7.0)
Thanks a lot
Cornelius
There is a library called ZugferdXml.php.
It is called in the helpers/zugferd_helper.php file.
I tested this with PHP 5.6, 7.0 and 7.1 and the library was loaded without any problems and the PDF got the XML attached.
Also, it does not make any difference for me if I change the libary call from zugferdxml to ZugferdXml and also changing the class name from ZugferdXml to Zugferdxml does not affect the PDF generation.
Is there kind of a PHP config that requires class calls to be case sensitive? You may try to change the call in the helper file to ZugferdXml.
Thanks for you reply.
After changing the filename
mv application/libraries/ZugferdXml.php application/libraries/Zugferdxml.php
the pdf generating with the Zugferd data works fine.
Can we either change the name of the file or the call of the class upstream?
I am running on ubuntu 16.04 LTS; maybe this is a reason.