Flutter 打包报错，jar包无法下载

* What went wrong:Execution failed for task ':app:lintVitalRelease'.> Could not resolve all artifacts for configuration ':flutter_plugin_android_lifecycle:debugUnitTestRuntimeClasspath'.   > Could not download mockito-core.jar (org.mockito:mockito-core:1.10.19)      > Could not get resource 'https://jcenter.bintray.com/org/mockito/mockito-core/1.10.19/mockito-core-1.10.19.jar'.         > Could not GET 'https://d29vzk4ow07wi7.cloudfront.net/e8546f5bef4e061d8dd73895b4e8f40e3fe6effe?response-content-disposition=attachment%3Bfilename%3D%22mockito-core-1.10.19.jar%22&Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHAqOi8vZDI5dnprNG93MDd3aTcuY2xvdWRmcm9udC5uZXQvZTg1NDZmNWJlZjRlMDYxZDhkZDczODk1YjRlOGY0MGUzZmU2ZWZmZT9yZXNwb25zZS1jb250ZW50LWRpc3Bvc2l0aW9uPWF0dGFjaG1lbnQlM0JmaWxlbmFtZSUzRCUyMm1vY2tpdG8tY29yZS0xLjEwLjE5LmphciUyMiIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MTU5MzY3Nzg1Mn0sIklwQWRkcmVzcyI6eyJBV1M6U291cmNlSXAiOiIwLjAuMC4wLzAifX19XX0_&Signature=hJVHYxC6IyHh60mrwXxA1fdFAdA5d-TMcVTSthR2dxFK-NPWYXETVJ7Jmjz2~UOPSWgUQoe7UuNqio5PWESJVd5dAmqm5ZVQe9OQMUmUUhkkKruJsJXYclFpqbWovVkp45hXiaPfSaya3zmqaDGz9P2oBFxyBHVb1fQhXEwkRes7-rpYAhslQv5jzYcq52W48ufhMksQRfNC7t6gwUzZ~LAcBq3I60LZbHDiDpcCv4GPfK3P7Vs7QvxKsgIUshqUwFj7SUg2IKUGMuh7LPM7NxhCZqBwyDmK2fNqTRmn-egubyAjBp-UG9S8sXXkjotQIEks1C1g5YFxjvb3hBceJw__&Key-Pair-Id=APKAIFKFWOMXM2UMTSFA'.            > Connection reset* 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.

解决方法

找到 flutter sdk 的安装路径的 gradle 文件flutter\packages\flutter_tools\gradle\flutter.gradle添加如下代码：buildscript {         repositories {             google()        //新添加的一行代码mavenCentral()        jcenter()    }    dependencies {             classpath 'com.android.tools.build:gradle:3.5.0'    }}android {         compileOptions {             sourceCompatibility 1.8        targetCompatibility 1.8    }}

如果以上还不能解决，尝试一下添加其他的镜像

相关链接：https://blog.csdn.net/qq_24523279/article/details/99412635

Flutter 打包 Could not get resource

Flutter 打包报错，jar包无法下载

解决方法

如果以上还不能解决，尝试一下添加其他的镜像

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