log文件：
FAILURE: Build failed with an exception.
What went wrong:
A problem occurred configuring root project ‘proj.android-studio’.
Could not resolve all artifacts for configuration ‘:classpath’.
Could not resolve org.apache.httpcomponents:httpclient:4.5.2.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:crash:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:crash:26.2.0 > org.apache.httpcomponents:httpmime:4.5.2
Could not resolve 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.pom’.
Could not HEAD ‘https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.pom’.
Read timed out
Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.2.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.lint:lint-gradle-api:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdk-common:26.2.0
Skipped due to earlier error
Could not resolve org.antlr:antlr4:4.5.3.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > androidx.databinding:databinding-compiler-common:3.2.0
Skipped due to earlier error
Could not resolve commons-io:commons-io:2.4.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > androidx.databinding:databinding-compiler-common:3.2.0
Skipped due to earlier error
Could not resolve com.googlecode.juniversalchardet:juniversalchardet:1.0.3.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > androidx.databinding:databinding-compiler-common:3.2.0
Skipped due to earlier error
Could not resolve com.squareup:javapoet:1.8.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > androidx.databinding:databinding-compiler-common:3.2.0
Skipped due to earlier error
Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.2.20.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > org.jetbrains.kotlin:kotlin-stdlib-jre8:1.2.0
Skipped due to earlier error
Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jre7:1.2.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > org.jetbrains.kotlin:kotlin-stdlib-jre8:1.2.0
Skipped due to earlier error
Could not resolve net.sf.proguard:proguard-base:6.0.3.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > net.sf.proguard:proguard-gradle:6.0.3
Skipped due to earlier error
Could not resolve com.google.auto.value:auto-value:1.5.2.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:bundletool:0.5.0
Skipped due to earlier error
Could not resolve com.google.errorprone:error_prone_annotations:2.2.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:bundletool:0.5.0
Skipped due to earlier error
Could not resolve com.google.protobuf:protobuf-java:3.4.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:bundletool:0.5.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdk-common:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools.analytics-library:protos:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools.analytics-library:tracker:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:bundletool:0.5.0 > com.android.tools.build:aapt2-proto:0.3.1
Skipped due to earlier error
Could not resolve com.google.protobuf:protobuf-java-util:3.4.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:bundletool:0.5.0
Skipped due to earlier error
Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.2.20.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build.jetifier:jetifier-core:1.0.0-alpha10
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-alpha10
Skipped due to earlier error
Could not resolve org.jdom:jdom2:2.0.6.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-alpha10
Skipped due to earlier error
Could not resolve org.apache.commons:commons-compress:1.12.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools:repository:26.2.0
Skipped due to earlier error
Could not resolve javax.inject:javax.inject:1.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdk-common:26.2.0
Skipped due to earlier error
Could not resolve net.sf.kxml:kxml2:2.3.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools.build:manifest-merger:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools.ddms:ddmlib:26.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools.layoutlib:layoutlib-api:26.2.0
Skipped due to earlier error
Could not resolve com.google.code.findbugs:jsr305:1.3.9.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools.build:apkzlib:3.2.0
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:shared:26.2.0 > com.google.guava:guava:23.0
Skipped due to earlier error
Could not resolve com.google.errorprone:error_prone_annotations:2.2.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:shared:26.2.0 > com.google.guava:guava:23.0
Skipped due to earlier error
Could not resolve com.google.j2objc:j2objc-annotations:1.1.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:shared:26.2.0 > com.google.guava:guava:23.0
Skipped due to earlier error
Could not resolve org.codehaus.mojo:animal-sniffer-annotations:1.14.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.analytics-library:shared:26.2.0 > com.google.guava:guava:23.0
Skipped due to earlier error
Could not resolve org.jetbrains:annotations:13.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools.layoutlib:layoutlib-api:26.2.0
Skipped due to earlier error
Could not resolve com.sun.activation:javax.activation:1.2.0.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools:repository:26.2.0
Skipped due to earlier error
Could not resolve org.glassfish.jaxb:jaxb-runtime:2.2.11.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools:repository:26.2.0
Skipped due to earlier error
Could not resolve com.google.jimfs:jimfs:1.1.
Required by:
project : > com.android.tools.build:gradle:3.2.0 > com.android.tools.build:builder:3.2.0 > com.android.tools:sdklib:26.2.0 > com.android.tools:repository:26.2.0
Skipped due to earlier error
求解！！！