How fix this error?

Please never anywhere share screenshots of text if you only want to share the text and not something additional like colors or IDE annotations. Text in images is hard to read, especially on mobile, very hard to copy, and nearly impossible to search for. Besides that, you only shared a very minimal excerpt of you problem without any real information that one could you to help. Try running the build from commandline to see whether it also fails there. And in the IDE go to the

Build

tool window where you hopefully should find the full error.

I'm sorry the error1 : Execution failed for task 'appkspDebugKotlin'. > 'org.jetbrains.kotlin.buildtools.api.SourcesChanges org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.getChangedFiles$default(org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile, org.gradle.work.InputChanges, java.util.List, kotlin.jvm.functions.Function1, int, java.lang.Object)' the error2 : Execution failed for task 'appkspDebugKotlin'. > 'org.jetbrains.kotlin.buildtools.api.SourcesChanges org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.getChangedFiles$default(org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile, org.gradle.work.InputChanges, java.util.List, kotlin.jvm.functions.Function1, int, java.lang.Object)' * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. > Get more help at https://help.gradle.org. BUILD FAILED in 38s 45 actionable tasks: 1 executed, 44 up-to-date the error3 : Unable to find method ''org.jetbrains.kotlin.buildtools.api.SourcesChanges org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.getChangedFiles$default(org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile, org.gradle.work.InputChanges, java.util.List, kotlin.jvm.functions.Function1, int, java.lang.Object)'' 'org.jetbrains.kotlin.buildtools.api.SourcesChanges org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile.getChangedFiles$default(org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile, org.gradle.work.InputChanges, java.util.List, kotlin.jvm.functions.Function1, int, java.lang.Object)' Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) Re-download dependencies and sync project (requires network) The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this problem. Stop Gradle build processes (requires restart) Your project may be using a third-party plugin which is not compatible with the other plugins in the project or the version of Gradle requested by the project. In the case of corrupt Gradle processes, you can also try closing the IDE and then killing all Java processes.

did you try to close all java processes including the IDE, delete gradle's caches then restart your IDE and sync then build your project again?