以下sbt错误的来源是什么？

Question

:: problems summary ::
:::: WARNINGS
        module not found: org.scala-sbt#sbt;0.13.7

    ==== local: tried

      /home/jiakui/.ivy2/local/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

      -- artifact org.scala-sbt#sbt;0.13.7!sbt.jar:

      /home/jiakui/.ivy2/local/org.scala-sbt/sbt/0.13.7/jars/sbt.jar

    ==== typesafe-ivy-releases: tried

      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

    ==== Maven Central: tried

      https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.pom

      -- artifact org.scala-sbt#sbt;0.13.7!sbt.jar:

      https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.jar

        ::::::::::::::::::::::::::::::::::::::::::::::

        ::          UNRESOLVED DEPENDENCIES         ::

        ::::::::::::::::::::::::::::::::::::::::::::::

        :: org.scala-sbt#sbt;0.13.7: not found

        ::::::::::::::::::::::::::::::::::::::::::::::


:::: ERRORS

服务器访问错误：sun.security.validator.validatorexception：PKIX路径构建失败：sun.security.provider.certpath.suncertpathbuilderexception：找不到请求目标的有效证书路径url=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/0.13.7/ivys/ivys/ivy.xml

服务器访问错误：sun.security.validator.validatorexception：PKIX路径构建失败：sun.security.provider.certpath.suncertpathbuilderexception：找不到请求目标的有效证书路径url=https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.pom

服务器访问错误：sun.security.validator.validatorexception：PKIX路径构建失败：sun.security.provider.certpath.suncertpathbuilderexception：找不到请求目标的有效证书路径url=https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.jar

：：使用详细或调试消息级别获取更多详细信息未解决的依赖关系：org.scala-sbt#sbt；0.13.7:在sbt执行期间未找到错误：检索所需库时出错（有关完整日志，请参阅/home/jiakui/.sbt/boot/update.log）错误：无法检索sbt 0.13.7+退出1

Answer 1

我终于找到了变通办法。

在命令行运行此操作：

sudo/var/lib/dpkg/info/ca-certifications-java.postinst configure