无法下载jar。
收到此错误。
Unable to resolve dependency for ':app@debug/compileClasspath': Could not download jackson-databind.jar (com.fasterxml.jackson.core:jackson-databind:2.9.9)
implementation group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.9.9'
implementation group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: '2.9.9'
implementation group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.9.9'