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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
Below example table structure gives an ERROR: there is no unique constraint matching given keys for referenced table, and having stared at it for while now I can't figure out why this error arises in this situation.
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How to hide image broken Icon using only CSS/HTML?
...er hiding the image, or replacing the source with a backup.
<img src="Error.src" onerror="this.style.display='none'"/>
or
<img src="Error.src" onerror="this.src='fallback-img.jpg'"/>
Update
You can apply this logic to multiple images at once by doing something like this:
doc...
TSQL - How to use GO inside of a BEGIN .. END block?
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Hm, I'm getting an error on the update somehow after set noexec on has been executed? (error that the column name to update is invalid) Running on MSSQL 2014 in the query editor. Works fine if the condition turns false (thus noexec remains off)...
How to avoid circular imports in Python? [duplicate]
...ew the trick putting one of the "from imports" causing the circular import error at the bottom of the module, but this is better!
– Caumons
Jul 1 '13 at 14:01
46
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Receive JSON POST with PHP
...e.
function isValidJSON($str) {
json_decode($str);
return json_last_error() == JSON_ERROR_NONE;
}
$json_params = file_get_contents("php://input");
if (strlen($json_params) > 0 && isValidJSON($json_params))
$decoded_params = json_decode($json_params);
Edit: Note that removing ...
Anti-forgery token issue (MVC 5)
...I have created my own User class which worked fine but now I am getting an error whenever I go to the /Account/Register page. The error is:
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Ways to save Backbone.js model data?
...K!
// But you can send back other status like 400 which can trigger an error callback.
});
$app->delete('/donut/:id', function($id) use ($app) {
// Code to delete donut with id, $id
// Bye bye resource
});
So you've almost made the full round trip! Go get a soda. I like Diet Mountai...
Image.Save(..) throws a GDI+ exception because the memory stream is closed
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A generic error occurred in GDI+.
May also result from incorrect save path!
Took me half a day to notice that.
So make sure that you have double checked the path to save the image as well.
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The type initializer for 'MyClass' threw an exception
...is my Windows service code. When I am debugging the code, I am getting the error/ exception:
22 Answers
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What is the difference between a strongly typed language and a statically typed language?
...e restrictions are violated, the violation is reported as a (dynamic) type error.
For example, Lua, a dynamically typed language, has a string type, a number type, and a Boolean type, among others. In Lua every value belongs to exactly one type, but this is not a requirement for all dynamically ...