sbt网络问题解决方案

cd ~/.sbt/launchers/0.13.9
unzip -q ./sbt-launch.jar

vi sbt/sbt.boot.properties

[repositories]
  local
  oschina: http://maven.oschina.net/content/groups/public/
  jcenter: http://jcenter.bintray.com/
  typesafe-ivy-releases: http://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
  maven-central

rm ./sbt-launch.jar         # 删除旧的
jar -cfM ./sbt-launch.jar .       # 重新打包
ls | grep -v "sbt-launch.jar" | xargs rm -r    # 解压后的文件已无用，删除