Maven与Ubuntu 15.10，出现错误：mvn clean install; [英] Maven with Ubuntu 15.10, getting errors with: mvn clean install;

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问题描述

我正在使用我昨天购买的TransIP托管的vps。除Maven之外，每个插件的工作方式都应该如此。我重新安装了它多次，它似乎一直给出错误。

一旦我安装了Ubuntu 15.10，我做了什么：

sudo apt-get install openjdk-8-jdk
sudo apt-get install maven

路径：/ home / mart / [回购的文件夹]

完成后，我转到该文件夹并使用： mvn clean install 。它给了我这个错误：

  [信息]扫描项目... 
 [信息] 
 [INFO] ----------------------------------------------- ------------------------- 
 [INFO]构建Discordbot 0.0.1-SNAPSHOT 
 [信息] ---- -------------------------------------------------- ------------------ 
正在下载：https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean- plugin / 2.5 / maven-clean-plugin-2.5.pom 
 [INFO] ------------------------------ ------------------------------------------ 
 [INFO] BUILD FAILURE 
 [INFO] ------------------------------------------ ------------------------------ 
 [信息]总时间：0.782 s 
 [信息]完成at：2016-03-13T14：51：14 + 01：00 
 [INFO] Final Memory：6M / 15M 
 [INFO] --------------- -------------------------------------------------- ------- 
 [错误]插件org.apache.maven.plugins：maven-clean-plugin：2.5或其某个依赖关系无法解析：无法读取org.a的工件描述符pache.maven.plugins：maven-clean-plugin：jar：2.5：无法传输工件org.apache.maven.plugins：maven-clean-plugin：pom：2.5 from / to central（https：//repo.maven。 apache.org/maven2）：java.lang.RuntimeException：意外错误：java.security.InvalidAlgorithmParameterException：trustAnchors参数必须为非空 - > [帮助1] 
 [错误] 
 [错误]要查看错误的完整堆栈跟踪，请使用-e开关重新运行Maven。 
 [错误]使用-X开关重新运行Maven以启用完整的调试日志记录。 
 [错误] 
 [错误]有关错误和可能解决方案的更多信息，请阅读以下文章：
 [错误] [帮助1] http://cwiki.apache.org / confluence / display / MAVEN / PluginResolutionException

我的第二个想法是我可以运行该项目而不需要运行 mvn clean install ，然后运行 mvn exec：java 。然后导致错误，因为它找不到依赖关系。

这是我的pom.xml：

 < project xmlns =http://maven.apache.org/POM/4.0.0xmlns：xsi =http://www.w3.org/2001/XMLSchema-instancexsi：schemaLocation =http：// maven。 apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd\"> 
< modelVersion> 4.0.0< / modelVersion> 
< groupId> martacus.mart.bot< / groupId> 
< artifactId> Discordbot< / artifactId> 
< version> 0.0.1-SNAPSHOT< / version> 
< repositories> 
< repository> 
< id> jitpack.io< / id> 
< url> https：//jitpack.io< / url> 
< / repository> 
< repository> 
< id> bintray-thejavanerd-maven< / id> 
<名称> bintray< /名称> 
< url> https：//jcenter.bintray.com< / url> 
< / repository> 
< / repositories> 
<依赖关系> 
< dependency> 
< groupId> com.github.austinv11< / groupId> 
< artifactId> Discord4j< / artifactId> 
< version> 2.3.1< / version> 
< /依赖关系> 
< dependency> 
< groupId> net.dean.jraw< / groupId> 
< artifactId> JRAW< / artifactId> 
< version> 0.8.0< / version> 
< /依赖关系> 
< dependency> 
< groupId> mysql< / groupId> 
< artifactId> mysql-connector-java< / artifactId> 
< version> 5.1.38< / version> 
< /依赖关系> 
< dependency> 
< groupId> com.mashape.unirest< / groupId> 
< artifactId> unirest-java< / artifactId> 
< version> 1.4.8< / version> 
< /依赖关系> 
< /依赖关系> 
< build> 
< plugins> 
< plugin> 
< groupId> org.codehaus.mojo< / groupId> 
< artifactId> exec-maven-plugin< / artifactId> 
< version> 1.2.1< / version> 
<配置> 
< mainClass> martacus.mart.bot.Main< / mainClass> 
< / configuration> 
< / plugin> 
< / plugins> 
< / build> 
< / project>

运行'mvn -version'时，我得到：

  Apache Maven 3.3.3 
 Maven home：/ usr / share / maven 
 Java版本：1.8.0_66-internal，供应商：Oracle Corporation 
 Java home：/ usr / lib / jvm / java-8-openjdk-amd64 / jre 
默认语言环境：en_US，平台编码：UTF-8 
操作系统名称：linux 4.2.0-30-generic，arch：amd64，family：unix

当我运行'java -version'时：

  openjdk version1.8.0_66-internal
 OpenJDK Runtime环境（build 1.8.0_66-internal-b17）
 OpenJDK 64位服务器虚拟机（构建25.66-b17，混合模式）

当我搜索谷歌的时候，人们告诉我说它和我的代理设置有关。但我使用的是VPS，公司不能给我代理设置..也许如果有办法找出它们可能会解决问题，但我还没有找到一种方法来获得这些。 p>

如果您想在github上看到我的回购，以获取有关该项目的更多信息： https://github.com/Martacus/DiscordBot

一切工作在我的普通计算机上，但是当然，所有设置都是不同的，我使用Windows 8.我希望人们可以帮助我，如果您需要更多信息，请务必让我知道！
>这可能与ca-certificates的问题有关，试着运行这个命令：

update-ca-certificates -f
根据手册页：

<$ p $ update-ca-certificates是一个程序，它将目录/ etc / ssl / certs更新为
保存SSL c ertificates和generatecertificates.crt，一个串联的单文件
证书列表。

I am using a vps hosted by TransIP that i bought yesterday. Every plugin works like it should except maven. Ive reinstalled it multiple times and it just seems to give errors the whole time.

What I did once I installed ubuntu 15.10 is:

sudo apt-get install openjdk-8-jdk

sudo apt-get install maven

Then I cloned my repository from github into the user folder named my name:

Path:/home/mart/[folder of the repo]

Once I was done I went to the folder and used: mvn clean install. It gave me this error:
[INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Discordbot 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.782 s [INFO] Finished at: 2016-03-13T14:51:14+01:00 [INFO] Final Memory: 6M/15M [INFO] ------------------------------------------------------------------------ [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (https://repo.maven.apache.org/maven2): java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
My second thought was maybe I could run the project without needing to run mvn clean install and I ran mvn exec:java. Which then resulted in an error because it can't find the depencies.

This is my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>martacus.mart.bot</groupId> <artifactId>Discordbot</artifactId> <version>0.0.1-SNAPSHOT</version> <repositories> <repository> <id>jitpack.io</id> <url>https://jitpack.io</url> </repository> <repository> <id>bintray-thejavanerd-maven</id> <name>bintray</name> <url>https://jcenter.bintray.com</url> </repository> </repositories> <dependencies> <dependency> <groupId>com.github.austinv11</groupId> <artifactId>Discord4j</artifactId> <version>2.3.1</version> </dependency> <dependency> <groupId>net.dean.jraw</groupId> <artifactId>JRAW</artifactId> <version>0.8.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <dependency> <groupId>com.mashape.unirest</groupId> <artifactId>unirest-java</artifactId> <version>1.4.8</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>exec-maven-plugin</artifactId> <version>1.2.1</version> <configuration> <mainClass>martacus.mart.bot.Main</mainClass> </configuration> </plugin> </plugins> </build> </project>
When I run 'mvn -version' I get:
Apache Maven 3.3.3 Maven home: /usr/share/maven Java version: 1.8.0_66-internal, vendor: Oracle Corporation Java home: /usr/lib/jvm/java-8-openjdk-amd64/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux", version: "4.2.0-30-generic", arch: "amd64", family: "unix"
When I run 'java -version' I get:
openjdk version "1.8.0_66-internal" OpenJDK Runtime Environment (build 1.8.0_66-internal-b17) OpenJDK 64-Bit Server VM (build 25.66-b17, mixed mode)
When I searched around google people told me that it had something to do with my proxy settings. But I am using a vps and the company couldnt give me the proxy settings.. Maybe if there is a way to find out what they are it might solve the problem, but I haven't found a way to get those yet.

If you'd like to see my repo on github for more information about the project: https://github.com/Martacus/DiscordBot

Everything works on my normal computer, but ofcourse the settings for everything is different and I use windows 8. I do hope people can help me and if you would need more information make sure to let me know!
解决方案
It's maybe related to a problem of ca-certificates, try to run this command:
update-ca-certificates -f
According to the man page:
update-ca-certificates is a program that updates the directory /etc/ssl/certs to hold SSL certificates and generatescertificates.crt, a concatenated single-file list of certificates.

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