Tag: error
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Fix Error: OBS display capture shows black screen on Windows 10
Fresh install of OBS on windows 10, especially wiht nvidia hardware, shows black screen on display(screen) capture. You can fix it by going to graphics settings and select the obs64.exe and make it use Power Saving mode. Then restart OBS. it should work as expected now.
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Angular error: can’t bind to ‘ngmodel’ since it isn’t a known property of ‘input’
This usually happens because App has not registered FormsModule to be used. So just go into your main app.module.ts and add: import { FormsModule } from ‘@angular/forms’; and add the same to imports as well: imports: [ BrowserModule, AppRoutingModule, FormsModule ],
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Type ‘NSNotification.Name’ has no member ‘UIResponder’ Error iOS
Delete the text NSNotification.Name. written before the UIResponder to remove the error.
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Forced Unwrapping of Optional in Swift
If statements are used to compare the optional value to nil .If there is a value then we can obtain the value stored in the optional by adding ! at the end of the optional type. This is known as forced unwrapping of optional value. Always make sure that the optional has a non-nil value […]
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Return from initializer without initializing all stored properties error in Swift initialization
This error may occur due to the fact that a constant is assigned a optional type and not provided with explicit value. Constants can be assigned with a value only once. So when we declare a stored property inside a type as constant with optional type, Swift compiler wants us to assign a explicit value […]
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How to convert errors to optional values in Swift?
We can convert errors to optional value by using try?..try!. If we want to disable error propagation (knowing that error won’t be happening) we can use try! instead of try?
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How to handle error propagated to the calling function in Swift?
We handle errors propagated to the calling function from a catch clause using do-catch statements. Any errors that are nor mentioned in error protocol we defined, the error is propagated to the calling function and handled by a simple catch clause.
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How to use do-catch statement to handle errors in Swift?
We can use do-catch statements to handle errors in Swift. We have to include the error throwing function call along with try keyword inside the do block and match error patterns in catch block.
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Error throwing initializers in Swift
Initializers can also throw errors by calling error throwing functions and propagate the error to the caller.