classifier does not have a companion object

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Classifier JSONObject does not have a 'companion object, and thus must be initialized here 1 Why supportFragmentManager.saveFragmentInstanceState(selectedFragment)!! = null

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Android Kotlin - Classifier 'Activity' does not have a companion object, and thus must be initialized here 0 Keep getting a “Classifier 'SharedViewModel' does not have a companion object, and thus must be initialized here” error when using a view model

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evals Published at Dev. 240. evals. i want to use BottomNavigationView in my app and i'm facing this problem with kotlin (never had it before with java) i see this message : classifier 'listFragment' does not have a companion object and thus must be initialized here. this is my code : private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { …

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classifier does not have a companion object , and thus

classifier does not have a companion object , and thus

So it says that: classifier ExeptionClass does not have a companion object, and thus must be initialized here. So you want to throw an exception. You thus want to use orElseThrow (), and not orElse (). So you need to pass a supplier (i.e. a lambda) that creates and returns an exception, by invoking its constructor

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Mar 28, 2018 · One of the big changes that Kotlin brought to Java developers is the absence of the static modifier. Contrary to Java, Kotlin classes don’t really allow you to declare static fields or methods. Instead, you have to add a Companion object to your classes to wrap all those static references: the difference might seem minimal, but it has a few noticeable implications

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Unlike Java or C#, Kotlin doesn’t have static members or member functions. Kotlin recommends to simply use package-level functions instead. If you need to write a function that can be called without having a class instance but needs access to the internals of a class, you can write it as a member of a companion object declaration inside that class

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May 21, 2020 · Companion objects are initialized the first time the containing class is loaded — even if the companion object is not used. As a result, companion objects are not lazy. Regular objects, like the

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Mar 21, 2018 · // here I get the compiler error // Classifier 'DELETE_ALL' does not have a companion object and thus must be initialized here db.execute(FooModel.DELETE_ALL) All other interactions are usable except this one. Edit: Apparently, all I needed to do was actually call the method. I swear I had it working the other way previously

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