草庐IT

Android Gradle 插件从 3.1.4 更新到 3.2.0 导致 TaskExecutionException

coder 2023-12-29 原文

当我将 gradle 插件从 3.1.4 升级到 3.2.0 时,我遇到了以下错误。我做了什么:

  • 取消选中即时运行
  • 添加到 local.properties org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
  • 失效并重启
  • 清理并构建项目

没有变化...

错误:

build failed 32 s 17 ms ... :app:transformClassesWithDexBuilderForAndroid50SncfDebug Execute transform

    org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformClassesWithDexBuilderForAndroid50SncfDebug'.
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:103)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:73)
    at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
    at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
    at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
    at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
    at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
    at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
    at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
    at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
    at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
    at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
    at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
    at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:256)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:249)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:238)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:123)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:79)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:104)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:98)
    at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:663)
    at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:597)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
    at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: com.android.build.api.transform.TransformException: java.lang.RuntimeException: java.lang.RuntimeException
    at com.android.builder.profile.Recorder$Block.handleException(Recorder.java:55)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:104)
    at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:230)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
    at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:124)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:113)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:95)
    ... 33 more
Caused by: com.android.build.api.transform.TransformException: java.lang.RuntimeException: java.lang.RuntimeException
    at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.transform(DexArchiveBuilderTransform.java:427)
    at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:239)
    at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:235)
    at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
    ... 49 more
    Caused by: java.lang.RuntimeException: java.lang.RuntimeException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:593)
    at java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)
    at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:720)
    at com.android.ide.common.internal.WaitableExecutor.waitForTasksWithQuickFail(WaitableExecutor.java:146)
    at com.android.build.gradle.internal.transforms.DesugarIncrementalTransformHelper.getInitalGraphData(DesugarIncrementalTransformHelper.java:162)
    at com.android.build.gradle.internal.transforms.DesugarIncrementalTransformHelper.makeDesugaringGraph(DesugarIncrementalTransformHelper.java:130)
    at com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:160)
    at com.android.build.gradle.internal.transforms.DesugarIncrementalTransformHelper.getDependenciesPaths(DesugarIncrementalTransformHelper.java:231)
    at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.getD8DesugaringCacheInfo(DexArchiveBuilderTransform.java:461)
    at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.transform(DexArchiveBuilderTransform.java:375)
    ... 52 more
Caused by: java.lang.RuntimeException
    at org.objectweb.asm.ClassVisitor.visitModule(ClassVisitor.java:148)
    at org.objectweb.asm.ClassReader.readModule(ClassReader.java:731)
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:632)
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:500)
    at com.android.builder.desugaring.DesugaringClassAnalyzer.analyze(DesugaringClassAnalyzer.java:144)
    at com.android.builder.desugaring.DesugaringClassAnalyzer.analyzeJar(DesugaringClassAnalyzer.java:92)
    at com.android.builder.desugaring.DesugaringClassAnalyzer.analyze(DesugaringClassAnalyzer.java:63)
    at com.android.build.gradle.internal.transforms.DesugarIncrementalTransformHelper.lambda$getInitalGraphData$4(DesugarIncrementalTransformHelper.java:150)
    at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
    at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

我的项目级 Gradle 文件

apply from: 'buildsystem/ci.gradle'
apply from: 'buildsystem/dependencies.gradle'

buildscript {
    repositories {
        jcenter()
        mavenCentral()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.0'
    }
}

allprojects {

    ext {
        androidVersionCode = 15480001
        android40VersionCode = 15480001
        android42VersionCode = 17480001
        android50VersionCode = 20480001
        androidVersionName = "4.8.0"
        testInstrumentationRunner = "android.support.test.runner.AndroidJUnitRunner"
        testApplicationId = 'my.package'
    }
}

task wrapper(type: Wrapper) {
    description 'Creates the gradle wrapper.'
    gradleVersion '2.14.1'
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

repositories {
    google()
    maven { url "https://maven.google.com" }
}

还有我的模块级成绩文件:

apply plugin: 'com.android.application'

android {
    def globalConfiguration = rootProject.extensions.getByName("ext")

    flavorDimensions "flavor1", "flavor2"

    publishNonDefault true
    compileSdkVersion globalConfiguration.getAt("androidCompileSdkVersion")
    buildToolsVersion globalConfiguration.getAt("androidBuildToolsVersion")

    defaultConfig {
        minSdkVersion globalConfiguration.getAt("androidMinSdkVersion")
        targetSdkVersion globalConfiguration.getAt("androidTargetSdkVersion")

        versionCode globalConfiguration.getAt("androidVersionCode")
        versionName globalConfiguration.getAt("androidVersionName")

        multiDexEnabled true
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    signingConfigs {
        release {
            storeFile file('../keystore/my.keystore')
            storePassword "PASSWORD"
            keyAlias "ALIAS"
            keyPassword "PASSWORD"
        }
    }

    sourceSets.main {
        jni.srcDirs = [] // This prevents the auto generation of Android.mk
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }

    }

    productFlavors {
        android40 {
            minSdkVersion 15
            versionCode globalConfiguration.getAt("android40VersionCode")
            dimension "flavor1"

        }
        android42 {
            minSdkVersion 17
            versionCode globalConfiguration.getAt("android42VersionCode")
            dimension "flavor1"
        }
        android50 {
            minSdkVersion 20
            versionCode globalConfiguration.getAt("android50VersionCode")
            dimension "flavor1"
        }
        test{
            dimension "flavor2"
            applicationId = "my.package.test"
        }
    }

    packagingOptions {
        exclude 'LICENSE.txt'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/ASL2.0'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/LGPL2.1'
    }

    lintOptions {
        quiet true
        abortOnError false
        ignoreWarnings true
        disable 'InvalidPackage'            //Some libraries have issues with this.
        disable 'OldTargetApi'
        //Lint gives this warning but SDK 20 would be Android L Beta.
        disable 'IconDensities'             //For testing purpose. This is safe to remove.
        disable 'IconMissingDensityFolder'  //For testing purpose. This is safe to remove.
    }
}

repositories {
    google()
    maven { url "https://jitpack.io" }
    maven { url "https://maven.google.com" }
}

dependencies {
    def appDependencies = rootProject.ext.appDependencies

    // Dépendances Google
    api appDependencies.appcompatv7
    api appDependencies.supportv4
    api appDependencies.supportdesign
    api appDependencies.multidex
    api appDependencies.constLayout
    api appDependencies.playLocation

    // Annotations
    api appDependencies.dagger
    annotationProcessor appDependencies.daggerCompiler
    api appDependencies.bknife
    annotationProcessor appDependencies.bknifeCompiler
    compileOnly appDependencies.lombok
    annotationProcessor appDependencies.lombok

    // Librairies externes
    api appDependencies.commonsNet
    api appDependencies.commonsIo
    api appDependencies.altbeacon
    api appDependencies.rxjava
    api appDependencies.rxAndroid
    api files('src/main/jniLibs/activation.jar')
    api files('src/main/jniLibs/additionnal.jar')
    api files('src/main/jniLibs/mail.jar')

    // Projets
    implementation project(':converter')
    implementation project(':data')
    implementation project(':zones')
}

版本文件:

androidBuildToolsVersion = "28.0.3"
androidMinSdkVersion = 15
androidTargetSdkVersion = 28
androidCompileSdkVersion = 28
appcompatv7Version = "28.0.0"
supportv4Version = "28.0.0"
androidAnnotationsVersion = '28.0.0'
supportdesignVersion = '28.0.0'
multidexVersion = "1.0.3"
constLayoutVersion = "1.1.2"
butterknifeVersion = "8.8.1"

//Libraries
daggerVersion = '2.17'
javaxAnnotationVersion = '1.0'
javaxInjectVersion = '1'
commonsNetVersion = '3.3'
commonsIoVersion = '2.4'
jLayerVersion = '1.0.1.4'
altbeaconVersion = '2+'
rxjavaVersion = '2+'
rxAndroidVersion = '2.0.1'
firebaseVersion = '16.0.1'
lombokVersion = '1.18.2'
retrofitVersion = '2.1.0'
okhttpVersion = '3.5.0'
guavaVersion = '26.0-android'
gsonVersion = '2.6.2'
converteegsonVersion = '2.4.0'
playLocationVersion = '15.0.1'

appDependencies = [
        dagger        : "com.google.dagger:dagger:${daggerVersion}",
        daggerCompiler: "com.google.dagger:dagger-compiler:${daggerVersion}",
        multidex      : "com.android.support:multidex:${multidexVersion}",
        appcompatv7   : "com.android.support:appcompat-v7:${appcompatv7Version}",
        supportv4     : "com.android.support:support-v4:${supportv4Version}",
        supportdesign : "com.android.support:design:${supportdesignVersion}",
        constLayout   : "com.android.support.constraint:constraint-layout:${constLayoutVersion}",
        commonsNet    : "commons-net:commons-net:${commonsNetVersion}",
        commonsIo     : "commons-io:commons-io:${commonsIoVersion}",
        altbeacon     : "org.altbeacon:android-beacon-library:${altbeaconVersion}",
        rxjava        : "io.reactivex.rxjava2:rxjava:${rxjavaVersion}",
        rxAndroid     : "io.reactivex.rxjava2:rxandroid:${rxAndroidVersion}",
        firebase      : "com.google.firebase:firebase-appindexing:${firebaseVersion}",
        lombok        : "org.projectlombok:lombok:${lombokVersion}",
        bknife        : "com.jakewharton:butterknife:${butterknifeVersion}",
        bknifeCompiler: "com.jakewharton:butterknife-compiler:${butterknifeVersion}",
        playLocation  : "com.google.android.gms:play-services-location:${playLocationVersion}"
]

已解决 - 解决方案: (感谢 iGio90 打开了 issue)

1 目前合适的解决方案(推荐): lombok V1.16.18 :

  • lombok 版本为 1.16.18
  • 在项目根目录中添加一个“lombok.config”文件,行 “lombok.anyConstructor.suppressConstructorProperties = true”
  • 加入我的build.gradle "compileOnly 'javax.annotation:jsr250-api:1.0'"

2- hacky gross 解决方案(不推荐),使用 gradle.properties

  • 让所有版本都是最新的(我的lombok版本是1.18.2,gradle 4.6,gradle plugin 3.2.0)
  • 将以下行添加到您的 gradle.properties 中: android.enableD8.desugaring=false 同步时,您会收到警告“选项设置‘android.enableD8.desugaring=false’是实验性的,不受支持。当前默认值为‘true’”。但无论如何,在那之后一切都建立起来了。

有关更多解释,请参阅此处的问题: https://github.com/rzwitserloot/lombok/issues/1882

最佳答案

经过一天的测试,由于我遇到了与您完全相同的问题,并且顶层 + 模块级 gradle 文件看起来与我的非常接近,所以我发现删除 lombok 依赖项可以使其正常工作。仍然不知道为什么会发生这种情况,但看起来是 lombok 开发人员应该解决的问题。我也会在 github 上开一个问题

(编辑)

问题已打开,让我们等待 :D https://github.com/rzwitserloot/lombok/issues/1882

关于Android Gradle 插件从 3.1.4 更新到 3.2.0 导致 TaskExecutionException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52606514/

有关Android Gradle 插件从 3.1.4 更新到 3.2.0 导致 TaskExecutionException的更多相关文章

  1. ruby-on-rails - 如何验证 update_all 是否实际在 Rails 中更新 - 2

    给定这段代码defcreate@upgrades=User.update_all(["role=?","upgraded"],:id=>params[:upgrade])redirect_toadmin_upgrades_path,:notice=>"Successfullyupgradeduser."end我如何在该操作中实际验证它们是否已保存或未重定向到适当的页面和消息? 最佳答案 在Rails3中,update_all不返回任何有意义的信息,除了已更新的记录数(这可能取决于您的DBMS是否返回该信息)。http://ar.ru

  2. ruby - 如何每月在 Heroku 运行一次 Scheduler 插件? - 2

    在选择我想要运行操作的频率时,唯一的选项是“每天”、“每小时”和“每10分钟”。谢谢!我想为我的Rails3.1应用程序运行调度程序。 最佳答案 这不是一个优雅的解决方案,但您可以安排它每天运行,并在实际开始工作之前检查日期是否为当月的第一天。 关于ruby-如何每月在Heroku运行一次Scheduler插件?,我们在StackOverflow上找到一个类似的问题: https://stackoverflow.com/questions/8692687/

  3. ruby-on-rails - 无法使用 Rails 3.2 创建插件? - 2

    我对最新版本的Rails有疑问。我创建了一个新应用程序(railsnewMyProject),但我没有脚本/生成,只有脚本/rails,当我输入ruby./script/railsgeneratepluginmy_plugin"Couldnotfindgeneratorplugin.".你知道如何生成插件模板吗?没有这个命令可以创建插件吗?PS:我正在使用Rails3.2.1和ruby​​1.8.7[universal-darwin11.0] 最佳答案 随着Rails3.2.0的发布,插件生成器已经被移除。查看变更日志here.现在

  4. ruby-on-rails - 使用 rails 4 设计而不更新用户 - 2

    我将应用程序升级到Rails4,一切正常。我可以登录并转到我的编辑页面。也更新了观点。使用标准View时,用户会更新。但是当我添加例如字段:name时,它​​不会在表单中更新。使用devise3.1.1和gem'protected_attributes'我需要在设备或数据库上运行某种更新命令吗?我也搜索过这个地方,找到了许多不同的解决方案,但没有一个会更新我的用户字段。我没有添加任何自定义字段。 最佳答案 如果您想允许额外的参数,您可以在ApplicationController中使用beforefilter,因为Rails4将参数

  5. objective-c - 在设置 Cocoa Pods 和安装 Ruby 更新时出错 - 2

    我正在尝试为我的iOS应用程序设置cocoapods但是当我执行命令时:sudogemupdate--system我收到错误消息:当前已安装最新版本。中止。当我进入cocoapods的下一步时:sudogeminstallcocoapods我在MacOS10.8.5上遇到错误:ERROR:Errorinstallingcocoapods:cocoapods-trunkrequiresRubyversion>=2.0.0.我在MacOS10.9.4上尝试了同样的操作,但出现错误:ERROR:Couldnotfindavalidgem'cocoapods'(>=0),hereiswhy:U

  6. ruby-on-rails - 您希望看到哪些 Rails 插件? - 2

    您认为可以作为插件很好地存在于您的Rails应用程序中必须实现的哪些行为?您过去曾搜索过哪些插件功能但找不到?哪些现有的Rails插件可以改进或扩展,如何改进或扩展? 最佳答案 我希望在管理界面中看到一个引擎插件,它提供了应用程序中所有模型的仪表板摘要,以及可配置的事件图表。 关于ruby-on-rails-您希望看到哪些Rails插件?,我们在StackOverflow上找到一个类似的问题: https://stackoverflow.com/questio

  7. Ruby 守护进程导致 ActiveRecord 记录器 IOError - 2

    我目前正在用Ruby编写一个项目,它使用ActiveRecordgem进行数据库交互,我正在尝试使用ActiveRecord::Base.logger记录所有数据库事件具有以下代码的属性ActiveRecord::Base.logger=Logger.new(File.open('logs/database.log','a'))这适用于迁移等(出于某种原因似乎需要启用日志记录,因为它在禁用时会出现NilClass错误)但是当我尝试运行包含调用ActiveRecord对象的线程守护程序的项目时脚本失败并出现以下错误/System/Library/Frameworks/Ruby.frame

  8. ruby-on-rails - Rails Associations 的更新方法是什么? - 2

    这太简单了,太荒谬了,我在任何地方都找不到关于它的任何信息,包括API文档和Rails源代码:我有一个:belongs_to关联,我开始理解当您没有关联时您在Controller中调用的正常模型方法与您有关联时调用的方法略有不同。例如,我的关联在创建Controller操作时运行良好:@user=current_user@building=Building.new(params[:building])respond_todo|format|if@user.buildings.create(params[:building])#etcetera但我找不到关于更新如何工作的文档:@user

  9. ruby - 从另一个私有(private)方法中使用 self.xxx() 调用私有(private)方法 xxx,导致错误 "private method ` xxx' called” - 2

    我正在尝试获得良好的Ruby编码风格。为防止意外调用具有相同名称的局部变量,我总是在适当的地方使用self.。但是现在我偶然发现了这个:classMyClass上面的代码导致错误privatemethodsanitize_namecalled但是当删除self.并仅使用sanitize_name时,它会起作用。这是为什么? 最佳答案 发生这种情况是因为无法使用显式接收器调用私有(private)方法,并且说self.sanitize_name是显式指定应该接收sanitize_name的对象(self),而不是依赖于隐式接收器(也是

  10. ruby - vagrant 从 github 安装插件 - 2

    我们正在使用Vagrant进行部署,我们最终希望将此集群部署在Rackspace上。vagrant-rackspace插件是一个自然的选择,但它有一些错误,这些错误未包含在最新的0.1.1版本中(notablythatvagrantprovisiondoesn'twork)。我已经在我的personalfork中解决了这个问题通过合并其他人的工作来对存储库进行改造。是否可以从github安装vagrant插件?显而易见的事情没有奏效:[unix]$vagrantplugininstallvagrant-rackspace--plugin-sourcehttps://github.com

随机推荐