unable to resolve dependency for app@。。。解决方法

最近把android studio升级到了3.2，出了一堆问题，主要就是无法更新无法下载之类的。

包括出现的：

unable to resolve dependency for app@。。。
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由于已经解决无法复现。
解决方法：
打开C:/Users/(用户名)/.gradle/gradle.properties
把代理的配置注释掉，例如：

## For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
#
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx1024m -XX:MaxPermSize=256m
# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
#
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
#Sat Sep 29 23:37:12 CST 2018
#systemProp.http.proxyHost=mirrors.neusoft.edu.cn
#systemProp.https.proxyPort=80
#systemProp.https.proxyHost=mirrors.neusoft.edu.cn
#systemProp.http.proxyPort=80

然后重启studio，Build–>Make Project一下，则会自动下载该下载的东西。

附上参考的博客链接：https://blog.csdn.net/csdnfengli/article/details/80695769