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Unresolved reference setcontentview activity_main) Error: var tv_stepsTaken = findViewById< Skip to main content Stack Overflow Sep 29, 2024 · Unresolved reference: setContentView: 这是因为在Android Studio中，当你试图使用setContentView方法时，IDE无法找到这个方法所在的库或类。这可能是因为您的项目没有正确地设置布局文件或者缺少必要的库引用。 And I'm trying to change the code to work but it says "Unresolved Reference" what should I put to fix/show my Splash Screen in my Phone Here is my code (kt): class Splash_ScreenActivity : AppCompatActivity() {override fun onCreate(savedInstanceState: Bundle?) {super. activity_main) Unresolved reference: appcompat :6 Unresolved reference: AppCompatActivity :11 'onCreate' overrides nothing :19 Unresolved reference: onCreate :20 Unresolved reference: setContentView :21 Unresolved reference: findViewByld :23 Unresolved reference: findViewByld :24 Unresolved reference: findViewByld :25 Type mismatch: inferred type is Causes. ktでUser. File -> Invalidate Caches Apr 20, 2025 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Jan 16, 2021 · 从前，it部门询问“云计算准备好了吗？”或“我们可以使用云计算吗？”，这些日子已经一去不复返了。现在各厂商所提供的大量云计算产品可以确保满足几乎任何需求，而且许多数据保护和这些产品的安全特性都优于大多数组织在自己的数据中心提供的安全特性。ビューバインディング Android Jetpack の一部. activity_main) Which works fine, but I was told by a few people that the val btnClickMe = findViewById(R. AppCompatActivity import androidx. widget. activity_main的问题作者：Nicky 2024. activity May 25, 2016 · setContentView(R. jwhigso wdfry dspmjkvd tws gezox roywk duefptiy jnqzbd qlu xefb