windows - 无法删除一些 child 。发生这种情况的原因是，进程已打开文件或在目标目录中设置了工作目录

Question

由于某些未知的原因，每当我启动笔记本后运行gradle clean build时，它就会按预期运行。当我第二次尝试时，我总是得到

Unable to delete directory 'C:\_d\mycompany\WSs\demo\build'
  Failed to delete some children. This might happen because a process has files open or has its working directory set in the target directory.
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin\main\com\mybank
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin\main\com
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin\main
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin\test\com
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin\test
  - C:\_d\mycompany\WSs\demo\build\classes\kotlin
  - C:\_d\mycompany\WSs\demo\build\classes
  - C:\_d\mycompany\WSs\demo\build\generated\source\kapt
  - C:\_d\mycompany\WSs\demo\build\generated\source\kaptKotlin\main
  - C:\_d\mycompany\WSs\demo\build\generated\source\kaptKotlin\test
  - C:\_d\mycompany\WSs\demo\build\generated\source\kaptKotlin
  - C:\_d\mycompany\WSs\demo\build\generated\source
  - C:\_d\mycompany\WSs\demo\build\generated
  - C:\_d\mycompany\WSs\demo\build\kotlin\compileKotlin\caches-jvm\inputs
  - C:\_d\mycompany\WSs\demo\build\kotlin\compileKotlin\caches-jvm\jvm\kotlin
  - C:\_d\mycompany\WSs\demo\build\kotlin\compileKotlin\caches-jvm\jvm
  - and more ...
  New files were found. This might happen because a process is still writing to the target directory.
  - C:\_d\mycompany\WSs\demo\build\kotlin\compileKotlin

我发现有人失败了类似的问题，但是使用的是Android Studio/Ubuntu(我使用的是IntelliJ Community/Windows 10):[其他问题] [1]
我仔细尝试了所有建议，但都没有解决我的问题。如果我重新启动Windows并仅工作一次，则只能恢复工作。
一些建议是:
1-关闭工作室并转到问题所在的路径，然后删除那里的文件夹。
我尝试关闭IntelliJ，但无法直接删除该文件夹
2-文件>设置>构建，执行，部署>即时运行>取消选中此复选框(启用即时运行以热插拔代码)
我的IntelliJ中没有这样的可选
IntelliJ IDEA 2020.2.3(社区版)
Build＃IC-202.7660.26，建于2020年10月6日
运行时版本:11.0.8 + 10-b944.34 amd64
VM:由JetBrains s.r.o提供的OpenJDK 64位服务器VM。
Windows 10 10.0
GC:ParNew，ConcurrentMarkSweep
内存:1963M
核心数:8
非捆绑插件:Lombook插件，org.jetbrains.kotlin
3-gradlew清洁
同一期
4-右键单击目录，在将出现的上下文菜单上单击属性，然后取消选中“只读”属性。之后，单击“应用”以应用更改。
我是管理员，但无法更改此类文件夹属性。
5-在Windows中以管理员身份运行android studio对我有用。
同一期
这是我的build.gradle

plugins {
    id "org.jetbrains.kotlin.jvm" version "1.4.10"
    id "org.jetbrains.kotlin.kapt" version "1.4.10"
    id "org.jetbrains.kotlin.plugin.allopen" version "1.4.10"
    id "com.github.johnrengelman.shadow" version "6.1.0"
    id "io.micronaut.application" version '1.0.5'
    id "com.gorylenko.gradle-git-properties" version "2.2.2"
}

version "0.1"
group "com.mybank"

repositories {
    mavenCentral()
    jcenter()
}

micronaut {
    runtime "netty"
    testRuntime "junit5"
    processing {
        incremental true
        annotations "com.mybank.*"
    }
}

dependencies {
    implementation("io.micronaut:micronaut-validation")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlinVersion}")
    implementation("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
    implementation("io.micronaut.kotlin:micronaut-kotlin-runtime")
    implementation("io.micronaut:micronaut-runtime")
    implementation("javax.annotation:javax.annotation-api")
    implementation("io.micronaut:micronaut-http-client")

    implementation("io.micronaut:micronaut-management")
    implementation("io.micronaut.sql:micronaut-jdbc-hikari")
    implementation("io.micronaut.sql:micronaut-hibernate-jpa")
    runtimeOnly("com.h2database:h2")
    runtimeOnly("ch.qos.logback:logback-classic")
    runtimeOnly("com.fasterxml.jackson.module:jackson-module-kotlin")



}

mainClassName = "com.mybank.ApplicationKt"
java {
    sourceCompatibility = JavaVersion.toVersion('11')
}

compileKotlin {
    kotlinOptions {
        jvmTarget = '11'
    }
}
compileTestKotlin {
    kotlinOptions {
        jvmTarget = '11'
    }
}

gradle.properties

micronautVersion=2.1.3
kotlinVersion=1.4.10

以及在IntelliJ中看到的build文件夹
[![在此处输入图片描述] [2]] [2]
***已编辑
我没有找到解决方法。我正在从[micronaut] [3]克隆的一个项目现在正在发生
虽然我是Windows管理员，但我无法删除构建文件夹

PS C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin> gradle clean build
> Task :clean FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':clean'.
> java.io.IOException: Unable to delete directory 'C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build'
    Failed to delete some children. This might happen because a process has files open or has its working directory set in 
the target directory.
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\generated\source\kaptKotlin\main
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\generated\source\kaptKotlin\test
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\generated\source\kaptKotlin
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\generated\source
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\generated
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\incApCache\main
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\incApCache\test
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\incApCache
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\stubs\main
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\stubs\test
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3\stubs
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp\kapt3
    - C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin\build\tmp

* 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

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 13s
1 actionable task: 1 executed
PS C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin> gradle stop

FAILURE: Build failed with an exception.

* What went wrong:
Task 'stop' not found in root project 'hello-world-kotlin'.

* Try:
Run gradle tasks to get a list of available tasks. 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

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 2s
PS C:\_d\toLearn\micronaut-grpc\examples\hello-world-kotlin> 


  [1]: https://stackoverflow.com/questions/25051278/unable-to-clean-project-in-android-studio/28139913
  [2]: /image/BUhTt.png
  [3]: https://github.com/micronaut-projects/micronaut-grpc.git

Answer 1

问题是您有多个Gradle进程仍在保持文件锁。
当碰巧停止在backgorund中运行的所有守护程序时，您可以尝试运行gradle --stop(通常有帮助)。
您还可以通过运行gradle --status来检查守护程序的状态。对我来说，输出:

No Gradle daemons are running.

Only Daemons for the current Gradle version are displayed.
See https://docs.gradle.org/6.5/userguide/gradle_daemon.html#sec:status

如果您看到某物，则可能是问题。
使用 --no-daemon和 --no-parallel可能会有所帮助，但它们只会隐藏潜在的问题。
以我为例，当发生这种情况时，我意识到我的进程在后台运行，因为测试从未完成。检查所有未完成/未完成的进程的线程和/或协程使用情况。
发生在我身上的另一种情况是，当我使用 ProcessBuilder启动另一个Java进程并且它没有退出时。