我已经在调试 session 中用Visual Studio Code抖动了这个问题，已经有一个多星期了，我已经尝试了所有可能的答案，但是现在仍然可以使用，我需要运行我的应用程序才能查看进度。
如果在如何运行该应用程序方面还有其他选择，请立即提供以仅运行该应用程序。
我想知道我是好还是缺课。
Launching lib\main.dart on TECNO Camon CX in debug mode...
* Error running Gradle:
ProcessException: Process "C:\Users\IB\Desktop\Android\myapp\berry_networks\Dart test\Scaffold\intro_to_scaffold\android\gradlew.bat" exited abnormally:
Starting a Gradle Daemon, 1 incompatible and 1 stopped Daemons could not be reused, use --status for details
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
> Could not download gradle.jar (com.android.tools.build:gradle:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.1/gradle-3.2.1.jar'.
> dl.google.com
> Could not download builder.jar (com.android.tools.build:builder:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/3.2.1/builder-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/3.2.1/builder-3.2.1.jar'.
> dl.google.com
> Could not download crash.jar (com.android.tools.analytics-library:crash:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/crash/26.2.1/crash-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/crash/26.2.1/crash-26.2.1.jar'.
> dl.google.com
> Could not download lint-gradle-api.jar (com.android.tools.lint:lint-gradle-api:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/26.2.1/lint-gradle-api-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/lint/lint-gradle-api/26.2.1/lint-gradle-api-26.2.1.jar'.
> No such host is known (dl.google.com)
> Could not download gradle-api.jar (com.android.tools.build:gradle-api:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle-api/3.2.1/gradle-api-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle-api/3.2.1/gradle-api-3.2.1.jar'.
> dl.google.com
> Could not download databinding-compiler-common.jar (androidx.databinding:databinding-compiler-common:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-compiler-common/3.2.1/databinding-compiler-common-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-compiler-common/3.2.1/databinding-compiler-common-3.2.1.jar'.
> dl.google.com
> Could not download manifest-merger.jar (com.android.tools.build:manifest-merger:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/manifest-merger/26.2.1/manifest-merger-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/manifest-merger/26.2.1/manifest-merger-26.2.1.jar'.
> dl.google.com
> Could not download sdk-common.jar (com.android.tools:sdk-common:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/sdk-common/26.2.1/sdk-common-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/sdk-common/26.2.1/sdk-common-26.2.1.jar'.
> dl.google.com
> Could not download builder-test-api.jar (com.android.tools.build:builder-test-api:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-test-api/3.2.1/builder-test-api-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-test-api/3.2.1/builder-test-api-3.2.1.jar'.
> dl.google.com
> Could not download ddmlib.jar (com.android.tools.ddms:ddmlib:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/ddms/ddmlib/26.2.1/ddmlib-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/ddms/ddmlib/26.2.1/ddmlib-26.2.1.jar'.
> dl.google.com
> Could not download sdklib.jar (com.android.tools:sdklib:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/sdklib/26.2.1/sdklib-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/sdklib/26.2.1/sdklib-26.2.1.jar'.
> dl.google.com
> Could not download layoutlib-api.jar (com.android.tools.layoutlib:layoutlib-api:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/layoutlib/layoutlib-api/26.2.1/layoutlib-api-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/layoutlib/layoutlib-api/26.2.1/layoutlib-api-26.2.1.jar'.
> dl.google.com
> Could not download dvlib.jar (com.android.tools:dvlib:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/dvlib/26.2.1/dvlib-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/dvlib/26.2.1/dvlib-26.2.1.jar'.
> dl.google.com
> Could not download repository.jar (com.android.tools:repository:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/repository/26.2.1/repository-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/repository/26.2.1/repository-26.2.1.jar'.
> dl.google.com
> Could not download common.jar (com.android.tools:common:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/common/26.2.1/common-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/common/26.2.1/common-26.2.1.jar'.
> dl.google.com
> Could not download kotlin-stdlib-jdk8.jar (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.2.71)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.2.71/kotlin-stdlib-jdk8-1.2.71.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.2.71/kotlin-stdlib-jdk8-1.2.71.jar'.
> No such host is known (jcenter.bintray.com)
> Could not download transform-api.jar (com.android.tools.build:transform-api:2.0.0-deprecated-use-gradle-api)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/transform-api/2.0.0-deprecated-use-gradle-api/transform-api-2.0.0-deprecated-use-gradle-api.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/transform-api/2.0.0-deprecated-use-gradle-api/transform-api-2.0.0-deprecated-use-gradle-api.jar'.
> dl.google.com
> Could not download jetifier-processor.jar (com.android.tools.build.jetifier:jetifier-processor:1.0.0-alpha10)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-processor/1.0.0-alpha10/jetifier-processor-1.0.0-alpha10.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-processor/1.0.0-alpha10/jetifier-processor-1.0.0-alpha10.jar'.
> dl.google.com
> Could not download asm-analysis.jar (org.ow2.asm:asm-analysis:6.0)
> Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm-analysis/6.0/asm-analysis-6.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/ow2/asm/asm-analysis/6.0/asm-analysis-6.0.jar'.
> jcenter.bintray.com
> Could not download asm-commons.jar (org.ow2.asm:asm-commons:6.0)
> Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm-commons/6.0/asm-commons-6.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/ow2/asm/asm-commons/6.0/asm-commons-6.0.jar'.
> jcenter.bintray.com
> Could not download asm-util.jar (org.ow2.asm:asm-util:6.0)
> Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm-util/6.0/asm-util-6.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/ow2/asm/asm-util/6.0/asm-util-6.0.jar'.
> jcenter.bintray.com
> Could not download asm-tree.jar (org.ow2.asm:asm-tree:6.0)
> Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm-tree/6.0/asm-tree-6.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/ow2/asm/asm-tree/6.0/asm-tree-6.0.jar'.
> jcenter.bintray.com
> Could not download asm.jar (org.ow2.asm:asm:6.0)
> Could not get resource 'https://jcenter.bintray.com/org/ow2/asm/asm/6.0/asm-6.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/ow2/asm/asm/6.0/asm-6.0.jar'.
> jcenter.bintray.com
> Could not download jopt-simple.jar (net.sf.jopt-simple:jopt-simple:4.9)
> Could not get resource 'https://jcenter.bintray.com/net/sf/jopt-simple/jopt-simple/4.9/jopt-simple-4.9.jar'.
> Could not GET 'https://jcenter.bintray.com/net/sf/jopt-simple/jopt-simple/4.9/jopt-simple-4.9.jar'.
> jcenter.bintray.com
> Could not download proguard-gradle.jar (net.sf.proguard:proguard-gradle:6.0.3)
> Could not get resource 'https://jcenter.bintray.com/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.jar'.
> Could not GET 'https://jcenter.bintray.com/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.jar'.
> jcenter.bintray.com
> Could not download bundletool.jar (com.android.tools.build:bundletool:0.5.0)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.5.0/bundletool-0.5.0.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.5.0/bundletool-0.5.0.jar'.
> dl.google.com
> Could not download jetifier-core.jar (com.android.tools.build.jetifier:jetifier-core:1.0.0-alpha10)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-core/1.0.0-alpha10/jetifier-core-1.0.0-alpha10.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/jetifier/jetifier-core/1.0.0-alpha10/jetifier-core-1.0.0-alpha10.jar'.
> dl.google.com
> Could not download builder-model.jar (com.android.tools.build:builder-model:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-model/3.2.1/builder-model-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder-model/3.2.1/builder-model-3.2.1.jar'.
> dl.google.com
> Could not download protos.jar (com.android.tools.analytics-library:protos:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/protos/26.2.1/protos-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/protos/26.2.1/protos-26.2.1.jar'.
> dl.google.com
> Could not download apkzlib.jar (com.android.tools.build:apkzlib:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/apkzlib/3.2.1/apkzlib-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/apkzlib/3.2.1/apkzlib-3.2.1.jar'.
> dl.google.com
> Could not download apksig.jar (com.android.tools.build:apksig:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/apksig/3.2.1/apksig-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/apksig/3.2.1/apksig-3.2.1.jar'.
> dl.google.com
> Could not download javawriter.jar (com.squareup:javawriter:2.5.0)
> Could not get resource 'https://jcenter.bintray.com/com/squareup/javawriter/2.5.0/javawriter-2.5.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/squareup/javawriter/2.5.0/javawriter-2.5.0.jar'.
> jcenter.bintray.com
> Could not download bcpkix-jdk15on.jar (org.bouncycastle:bcpkix-jdk15on:1.56)
> Could not get resource 'https://jcenter.bintray.com/org/bouncycastle/bcpkix-jdk15on/1.56/bcpkix-jdk15on-1.56.jar'.
> Could not GET 'https://jcenter.bintray.com/org/bouncycastle/bcpkix-jdk15on/1.56/bcpkix-jdk15on-1.56.jar'.
> jcenter.bintray.com
> Could not download bcprov-jdk15on.jar (org.bouncycastle:bcprov-jdk15on:1.56)
> Could not get resource 'https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.56/bcprov-jdk15on-1.56.jar'.
> Could not GET 'https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.56/bcprov-jdk15on-1.56.jar'.
> jcenter.bintray.com
> Could not download fastutil.jar (it.unimi.dsi:fastutil:7.2.0)
> Could not get resource 'https://jcenter.bintray.com/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.jar'.
> Could not GET 'https://jcenter.bintray.com/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.jar'.
> jcenter.bintray.com
> Could not download json-simple.jar (com.googlecode.json-simple:json-simple:1.1)
> Could not get resource 'https://jcenter.bintray.com/com/googlecode/json-simple/json-simple/1.1/json-simple-1.1.jar'.
> Could not GET 'https://jcenter.bintray.com/com/googlecode/json-simple/json-simple/1.1/json-simple-1.1.jar'.
> jcenter.bintray.com
> Could not download annotations.jar (com.android.tools:annotations:26.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/annotations/26.2.1/annotations-26.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/annotations/26.2.1/annotations-26.2.1.jar'.
> dl.google.com
> Could not download protobuf-java-util.jar (com.google.protobuf:protobuf-java-util:3.4.0)
> Could not get resource 'https://jcenter.bintray.com/com/google/protobuf/protobuf-java-util/3.4.0/protobuf-java-util-3.4.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/protobuf/protobuf-java-util/3.4.0/protobuf-java-util-3.4.0.jar'.
> jcenter.bintray.com
> Could not download jimfs.jar (com.google.jimfs:jimfs:1.1)
> Could not get resource 'https://jcenter.bintray.com/com/google/jimfs/jimfs/1.1/jimfs-1.1.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/jimfs/jimfs/1.1/jimfs-1.1.jar'.
> jcenter.bintray.com
> Could not download guava.jar (com.google.guava:guava:23.0)
> Could not get resource 'https://jcenter.bintray.com/com/google/guava/guava/23.0/guava-23.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/guava/guava/23.0/guava-23.0.jar'.
> jcenter.bintray.com
> Could not download gson.jar (com.google.code.gson:gson:2.8.0)
> Could not get resource 'https://jcenter.bintray.com/com/google/code/gson/gson/2.8.0/gson-2.8.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/code/gson/gson/2.8.0/gson-2.8.0.jar'.
> jcenter.bintray.com
> Could not download httpmime.jar (org.apache.httpcomponents:httpmime:4.5.2)
> Could not get resource 'https://jcenter.bintray.com/org/apache/httpcomponents/httpmime/4.5.2/httpmime-4.5.2.jar'.
> Could not GET 'https://jcenter.bintray.com/org/apache/httpcomponents/httpmime/4.5.2/httpmime-4.5.2.jar'.
> jcenter.bintray.com
> Could not download httpclient.jar (org.apache.httpcomponents:httpclient:4.5.2)
> Could not get resource 'https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar'.
> Could not GET 'https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar'.
> jcenter.bintray.com
> Could not download httpcore.jar (org.apache.httpcomponents:httpcore:4.4.5)
> Could not get resource 'https://jcenter.bintray.com/org/apache/httpcomponents/httpcore/4.4.5/httpcore-4.4.5.jar'.
> Could not GET 'https://jcenter.bintray.com/org/apache/httpcomponents/httpcore/4.4.5/httpcore-4.4.5.jar'.
> jcenter.bintray.com
> Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.2.0)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.2.0/kotlin-reflect-1.2.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.2.0/kotlin-reflect-1.2.0.jar'.
> jcenter.bintray.com
> Could not download databinding-common.jar (androidx.databinding:databinding-common:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-common/3.2.1/databinding-common-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/androidx/databinding/databinding-common/3.2.1/databinding-common-3.2.1.jar'.
> dl.google.com
> Could not download baseLibrary.jar (com.android.databinding:baseLibrary:3.2.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/databinding/baseLibrary/3.2.1/baseLibrary-3.2.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/databinding/baseLibrary/3.2.1/baseLibrary-3.2.1.jar'.
> dl.google.com
> Could not download antlr4.jar (org.antlr:antlr4:4.5.3)
> Could not get resource 'https://jcenter.bintray.com/org/antlr/antlr4/4.5.3/antlr4-4.5.3.jar'.
> Could not GET 'https://jcenter.bintray.com/org/antlr/antlr4/4.5.3/antlr4-4.5.3.jar'.
> jcenter.bintray.com
> Could not download commons-io.jar (commons-io:commons-io:2.4)
> Could not get resource 'https://jcenter.bintray.com/commons-io/commons-io/2.4/commons-io-2.4.jar'.
> Could not GET 'https://jcenter.bintray.com/commons-io/commons-io/2.4/commons-io-2.4.jar'.
> jcenter.bintray.com
> Could not download juniversalchardet.jar (com.googlecode.juniversalchardet:juniversalchardet:1.0.3)
> Could not get resource 'https://jcenter.bintray.com/com/googlecode/juniversalchardet/juniversalchardet/1.0.3/juniversalchardet-1.0.3.jar'.
> Could not GET 'https://jcenter.bintray.com/com/googlecode/juniversalchardet/juniversalchardet/1.0.3/juniversalchardet-1.0.3.jar'.
> jcenter.bintray.com
> Could not download javapoet.jar (com.squareup:javapoet:1.8.0)
> Could not get resource 'https://jcenter.bintray.com/com/squareup/javapoet/1.8.0/javapoet-1.8.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/squareup/javapoet/1.8.0/javapoet-1.8.0.jar'.
> jcenter.bintray.com
> Could not download kotlin-stdlib-jdk7.jar (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.2.71)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.2.71/kotlin-stdlib-jdk7-1.2.71.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.2.71/kotlin-stdlib-jdk7-1.2.71.jar'.
> jcenter.bintray.com
> Could not download kotlin-stdlib.jar (org.jetbrains.kotlin:kotlin-stdlib:1.2.71)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.2.71/kotlin-stdlib-1.2.71.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.2.71/kotlin-stdlib-1.2.71.jar'.
> jcenter.bintray.com
> Could not download proguard-base.jar (net.sf.proguard:proguard-base:6.0.3)
> Could not get resource 'https://jcenter.bintray.com/net/sf/proguard/proguard-base/6.0.3/proguard-base-6.0.3.jar'.
> Could not GET 'https://jcenter.bintray.com/net/sf/proguard/proguard-base/6.0.3/proguard-base-6.0.3.jar'.
> jcenter.bintray.com
> Could not download auto-value.jar (com.google.auto.value:auto-value:1.5.2)
> Could not get resource 'https://jcenter.bintray.com/com/google/auto/value/auto-value/1.5.2/auto-value-1.5.2.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/auto/value/auto-value/1.5.2/auto-value-1.5.2.jar'.
> jcenter.bintray.com
> Could not download aapt2-proto.jar (com.android.tools.build:aapt2-proto:0.3.1)
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/aapt2-proto/0.3.1/aapt2-proto-0.3.1.jar'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/aapt2-proto/0.3.1/aapt2-proto-0.3.1.jar'.
> dl.google.com
> Could not download error_prone_annotations.jar (com.google.errorprone:error_prone_annotations:2.2.0)
> Could not get resource 'https://jcenter.bintray.com/com/google/errorprone/error_prone_annotations/2.2.0/error_prone_annotations-2.2.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/errorprone/error_prone_annotations/2.2.0/error_prone_annotations-2.2.0.jar'.
> jcenter.bintray.com
> Could not download protobuf-java.jar (com.google.protobuf:protobuf-java:3.4.0)
> Could not get resource 'https://jcenter.bintray.com/com/google/protobuf/protobuf-java/3.4.0/protobuf-java-3.4.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/protobuf/protobuf-java/3.4.0/protobuf-java-3.4.0.jar'.
> jcenter.bintray.com
> Could not download jdom2.jar (org.jdom:jdom2:2.0.6)
> Could not get resource 'https://jcenter.bintray.com/org/jdom/jdom2/2.0.6/jdom2-2.0.6.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jdom/jdom2/2.0.6/jdom2-2.0.6.jar'.
> jcenter.bintray.com
> Could not download commons-compress.jar (org.apache.commons:commons-compress:1.12)
> Could not get resource 'https://jcenter.bintray.com/org/apache/commons/commons-compress/1.12/commons-compress-1.12.jar'.
> Could not GET 'https://jcenter.bintray.com/org/apache/commons/commons-compress/1.12/commons-compress-1.12.jar'.
> jcenter.bintray.com
> Could not download javax.inject.jar (javax.inject:javax.inject:1)
> Could not get resource 'https://jcenter.bintray.com/javax/inject/javax.inject/1/javax.inject-1.jar'.
> Could not GET 'https://jcenter.bintray.com/javax/inject/javax.inject/1/javax.inject-1.jar'.
> jcenter.bintray.com
> Could not download kxml2.jar (net.sf.kxml:kxml2:2.3.0)
> Could not get resource 'https://jcenter.bintray.com/net/sf/kxml/kxml2/2.3.0/kxml2-2.3.0.jar'.
> Could not GET 'https://jcenter.bintray.com/net/sf/kxml/kxml2/2.3.0/kxml2-2.3.0.jar'.
> jcenter.bintray.com
> Could not download jsr305.jar (com.google.code.findbugs:jsr305:1.3.9)
> Could not get resource 'https://jcenter.bintray.com/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar'.
> jcenter.bintray.com
> Could not download j2objc-annotations.jar (com.google.j2objc:j2objc-annotations:1.1)
> Could not get resource 'https://jcenter.bintray.com/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar'.
> Could not GET 'https://jcenter.bintray.com/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar'.
> jcenter.bintray.com
> Could not download animal-sniffer-annotations.jar (org.codehaus.mojo:animal-sniffer-annotations:1.14)
> Could not get resource 'https://jcenter.bintray.com/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar'.
> Could not GET 'https://jcenter.bintray.com/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar'.
> jcenter.bintray.com
> Could not download commons-logging.jar (commons-logging:commons-logging:1.2)
> Could not get resource 'https://jcenter.bintray.com/commons-logging/commons-logging/1.2/commons-logging-1.2.jar'.
> Could not GET 'https://jcenter.bintray.com/commons-logging/commons-logging/1.2/commons-logging-1.2.jar'.
> jcenter.bintray.com
> Could not download commons-codec.jar (commons-codec:commons-codec:1.9)
> Could not get resource 'https://jcenter.bintray.com/commons-codec/commons-codec/1.9/commons-codec-1.9.jar'.
> Could not GET 'https://jcenter.bintray.com/commons-codec/commons-codec/1.9/commons-codec-1.9.jar'.
> jcenter.bintray.com
> Could not download kotlin-stdlib-common.jar (org.jetbrains.kotlin:kotlin-stdlib-common:1.2.71)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-common/1.2.71/kotlin-stdlib-common-1.2.71.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib-common/1.2.71/kotlin-stdlib-common-1.2.71.jar'.
> jcenter.bintray.com
> Could not download annotations.jar (org.jetbrains:annotations:13.0)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/annotations/13.0/annotations-13.0.jar'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/annotations/13.0/annotations-13.0.jar'.
> jcenter.bintray.com
> Could not download javax.activation.jar (com.sun.activation:javax.activation:1.2.0)
> Could not get resource 'https://jcenter.bintray.com/com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.jar'.
> Could not GET 'https://jcenter.bintray.com/com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.jar'.
> jcenter.bintray.com
> Could not download jaxb-runtime.jar (org.glassfish.jaxb:jaxb-runtime:2.2.11)
> Could not get resource 'https://jcenter.bintray.com/org/glassfish/jaxb/jaxb-runtime/2.2.11/jaxb-runtime-2.2.11.jar'.
> Could not GET 'https://jcenter.bintray.com/org/glassfish/jaxb/jaxb-runtime/2.2.11/jaxb-runtime-2.2.11.jar'.
> jcenter.bintray.com
> Could not download jaxb-core.jar (org.glassfish.jaxb:jaxb-core:2.2.11)
> Could not get resource 'https://jcenter.bintray.com/org/glassfish/jaxb/jaxb-core/2.2.11/jaxb-core-2.2.11.jar'.
'https://jcenter.bintray.com/com/sun/istack/istack-commons-runtime/2.21/istack-commons-runtime-2.21.jar'。
Could not GET 'https://jcenter.bintray.com/com/sun/istack/istack-commons-runtime/2.21/istack-commons-runtime-2.21.jar'. jcenter.bintray.com
* 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 1m 59s
Command: C:\Users\IB\Desktop\Android\myapp\berry_networks\Dart test\Scaffold\intro_to_scaffold\android\gradlew.bat app:properties
Please review your Gradle project setup in the android/ folder.
Exited (sigterm)`
最佳答案
我面临着同样的问题。与您显示的错误类似。但是后来我发现问题与互联网连接有关。请检查您的互联网，然后再试一次，这样应该可以。
关于android - 使用Visual Studio在Flutter上运行Gradle时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56151173/