在Android开发中,如果你遇到了“cannot resolve method 'findViewById' in 'MainActivity'”的错误,这通常意味着findViewById方法在当前的作用域中无法被识别。以下是一些可能的解决步骤: 检查导入的包: 确保你已经导入了android.view.View包,这是使用findViewById方法所必需的。 java import android.view.View; 确...
ActivityTestRule 把鼠标定位到ActivityTestRule类所在位置,出现Cannot resolve symbol ‘ActivityTestRule’的错误,查阅Android开发文档, 发现需要导入android.support.test.rule.ActivityTestRule import andr oid.support.tst.rule.ActivityTestRule; 但是导入了之后还是出现Cannot resolve symbol ‘ActivityTestRule’的错误,...
1、Cannot resolve symbol 'AppCompatActivity' 依赖时依赖库不对 implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'androidx.appcompat:appcompat:1.6.1.0' implementation 'androidx.core:core:1.9.0' implementation 'androidx.appcompat:appcompat:1.1.0' implementation 'androidx.core:c...
ActivityTestRule 把鼠标定位到ActivityTestRule类所在位置,出现Cannot resolve symbol ‘ActivityTestRule’的错误,查阅Android开发文档, 发现需要导入android.support.test.rule.ActivityTestRule import andr oid.support.tst.rule.ActivityTestRule; 但是导入了之后还是出现Cannot resolve symbol ‘ActivityTestRule’的错误,...
【已解决】Android Studio Cannot resolve symbol '@dimen/activity_vertical_margin',程序员大本营,技术文章内容聚合第一站。
OS: Ubuntu 22.02 JDK Version: 19 VS Code Version: 1.75.1 When I click Run Java or Debug java from top right, it fails and says Error: Main method not found in the file, please define the main method as: public static void main(String[] args) The main method is there.test...
cannot resolve method 'registerforactivityresult`cannot resolve method 'registerforactivityresult'` 这个错误提示意味着编译器无法找到 `registerForActivityResult` 这个方法。这通常是因为以下几个原因: 1. API 版本问题:`registerForActivityResult` 是 Android API 26(Android Oreo)中引入的。如果你正在使用一个...
There is no implementation of ICompilationAssemblyResolver that will resolve paths for a CompilationLibrary with a Type of "reference", so when trying to use libraries like Microsoft.AspNetCore.Mvc that call ResolveReferencePaths, an exc...
If your code uses this class, the exception on the IDE "Cannot resolve symbol 'Activity Manager'" will appear due to the absence of importing the related class. This class can be imported in your class with the following line at the top of your class: ...
However I wanted to write some simple program, so I have copied old simple project so I don't need to setup everything from scratch. When I've opened it (deleted .idea & .iml) as Maven project, it was not able to resolve any JDK classes. ...