Why can't I edit with thymeleaf? - spring-boot

Does anyone know why this happens(see image)? It seems to be something wrong with the th:field="${portfolio.investor}" part because when I remove it, the page loads. However, then I lose the functionality of updating the user (foreign key) of the portfolio

The 500 error message
An error happened during template parsing (template: "class path
resource [templates/portfolio/edit-portfolio.html]")
org.thymeleaf.exceptions.TemplateInputException: An error happened
during template parsing
See A picture of the problem

Related

error: error in [unknown object].fireEvent(): event name: tinymceChange

I want to configurer a product on admin Magento 2.3.0 and an error comes up.
"error: error in [unknown object].fireEvent(): event name: tinymceChange error message: Cannot read property 'createRng' of undefined".
What can i do ?. Thanks in advance.
One of the possible cause of this issue, Sometimes when you create a piece of content and then save and reload it from the database you will see some random characters like  or ? are added to your content. When you see unusual characters like these in your content this is likely a character encoding issue.
One of the Possible solution which I know
Go to path: lib/web/mage/adminhtml/wysiwyg/tiny_mce/setup.js
Comment out this line: content = decodeURIComponent(content);
I hope this will help, not sure whether it works for you or not but you should try this

Can you please identify in which case following error occurs in xamarin forms

I have created one xaml page with binding but at sometimes at time of page loading getting fallowing exception, it seems very strange.
Please suggest in which situation we can get this type of error.
Error:

Magento getReadConnection() Error in /app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php on line 134

There is an error suddenly started popping up. The error occurs on various part of website like cart area, product detail page etc..
I am running my site on local server.
the error is as follows:
Fatal error: Call to a member function getReadConnection() on boolean in app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php on line 134
I have googled the issue but that didn't helped either.
You have to define the class and the resource model. Please check this link. I hope solve your problem.

Magento template does not load

all of a sudden some of the magento template like 1column failing to load.
Did anyone face this?
2014-04-02T15:12:33+00:00 DEBUG (7): Failed to load template:/home/wor/public_html/app/design/frontend/mytemplate/default/template/page/1column.phtml
Template path is correct and casing is also correct.
The error Failed to load template is not a part of stock Magento. Magento's can't load a template error is
Mage::log('Not valid template file:'.$fileName, Zend_Log::CRIT, null, null, true);
Also — notice that when Magento can't load a template, it uses the Zend_Log::CRIT error level, and not the DEBUG (7) level.
Both these signs point to some custom code (either an extension, local code pool override, core hack, or template customization) in your system that's making the template not load. Search your codebase for the Failed to load template string used with Mage::log. Once you find it, the context of the surrounding code should help you understand why Magento can't load your template.

Custom error handling

I am developing a component in joomla 2.5, my component sends a request to some url and gets the response object. If i pass wrong url, joomla takes me to the default page of Error : 500 - No response code found . I want that if user install my component and mistakenly they put wrong url , it should show some custom error message/page which should more meaningful to non-programming person rather than taking user to default error page. Is there some way to add this type of functionality in Joomla without editing template/error.php file in core.
You should have an error.php file in your template, if you don't add one and make it look the way you want. also remember that when you turn debugging off you won't get the stack trace etc.
However error 500 indicates something different than that the url does not exist ("wrong URL"), which would be a 404. 500 is an internal server error and you need to check your logs to figure out what is causing it.

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