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How to fix this error in swift-
unexpectedly found nil while unwrapping an optional value
I would recommend you to use this form while you are using SwiftyJSON.
result["RewardName"].stringValue
But before that I would check it if the "RewardName" actually exists by ;
if result["RewardName"] != JSON.null {
// Your code with parsing
}
Hop it helps!
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Cannot GET /Forms%20%5E&%20Input.html
this is the error i am getting while learning html
I am expecting an accurate answer from anyone but be quick.
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In my jsf managed bean file I am not able to import the UploadedFiles class of PrimeFaces; No dependency seems to contain it.
I tried upgrading PrimeFaces jar version to 7 but didn't find in it also.
I want multiple file upload feature.
Any help will be appreciated.
UploadedFiles was introduced in PrimeFaces 8
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I will make a table, as many as 62 fields. when it will be saved there appears an error like the following:
Go to image
Please help.
try clearing your browser cache and restarting your browser. Also, have a look at a similar problem here on SO:
PHPMyAdmin Undefined Index: Rows
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I use Joi for validation.
I send a POST request with Postman and get this response "$__" is not allowed.
Can't find any reference related to that.
Don't use Joi, mongoose has its own validator.
Write your own validation on the Model declaration.
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I used gcc compiler, MySQL Server 5.0
When I use a long length string as a value to insert or update or select or delete, system doesn't work. No error comes. So I could not find the error.
A part of my code is this :
mysql_query(conn, sql);
Yes, it's possible if you use the C driver for MySQL.