有沒有辦法避免在構建flutterandroid專案時呼叫dl.google.com和maven？

我正在使用 gradle 5.6.2。實際上，這是一個顫振專案，我使用以下方法構建它：

flutter build apk

我的專案有 2 個 build.gradle 檔案：

  android/
  ---- build.gragle
  ---- app/
       ---- build.gradle

我從父 build.gradle 中洗掉了google()和jcenter()存盤庫，并配置了一個 nexus 存盤庫。我的 build.gradle 看起來像這樣：

buildscript {
    ext.kotlin_version = '1.3.50'
    repositories {
        if (!hasProperty('NEXUS_CREDENTIALS_USR')) {
            ext.NEXUS_CREDENTIALS_USR = ''
        }
            
        if (!hasProperty('NEXUS_CREDENTIALS_PSW')) {
            ext.NEXUS_CREDENTIALS_PSW = ''
        }    
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-google-android"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-public"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-snapshots"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-group"
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

rootProject.buildDir = '../build'

allprojects {
    repositories {
        if (!hasProperty('NEXUS_CREDENTIALS_USR')) {
            ext.NEXUS_CREDENTIALS_USR = ''
        }
            
        if (!hasProperty('NEXUS_CREDENTIALS_PSW')) {
            ext.NEXUS_CREDENTIALS_PSW = ''
        }    
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-google-android"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-public"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-snapshots"
        }
        maven {
            credentials  {
                username = "${NEXUS_CREDENTIALS_USR}"
                password = "${NEXUS_CREDENTIALS_PSW}"
            }
            url "https://somenexusrepo.com/repository/maven-group"
        }
    }
}

subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"

    project.evaluationDependsOn(':app')
}

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

但是當我嘗試構建專案時，它仍然嘗試從其他存盤庫獲取一些依賴項。我正在嘗試從專用網路構建它，但我無法訪問 dl.google.com 或 repo.maven.apache.org 存盤庫，這就是我收到此錯誤的原因：

 A problem occurred evaluating project ':app'.
[        ] > Could not resolve all artifacts for configuration 'classpath'.
[        ]    > Could not resolve com.android.tools.build:gradle:4.1.0.
[        ]      Required by:
[        ]          unspecified:unspecified:unspecified
[        ]       > Could not resolve com.android.tools.build:gradle:4.1.0.
[        ]          > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.pom'.
[        ]             > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.pom'.
[        ]                > Connect to dl.google.com:443 [dl.google.com, dl.google.com] failed: No route to host (connect failed)
[        ]       > Could not resolve com.android.tools.build:gradle:4.1.0.
[        ]          > Could not get resource 'https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.pom'.
[        ]             > Could not GET 'https://repo.maven.apache.org/maven2/com/android/tools/build/gradle/4.1.0/gradle-4.1.0.pom'.
[        ]                > Connect to repo.maven.apache.org:443 [repo.maven.apache.org, repo.maven.apache.org] failed: connect timed out

即使我嘗試執行gradle build命令，也會出現相同的錯誤。

有沒有辦法避免使用這些存盤庫？

uj5u.com熱心網友回復：

我替換了flutter.gradle ($FLUTTER_ROOT/packages/flutter_tools/gradle/flutter.gradle)檔案中的存盤庫，現在 flutter 正在尋找自定義存盤庫中的包。

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