打包present, but unavailable

前言

本地打包一直失败，报错这 com.ctg.mq:ctg-mq-server:pom:2.7.7 (present, but unavailable)这几个包存在，但是无法依赖，另一台电脑可以，这几个包是公司内部jar，多方检查，对比版本都无法解决，尝试了网上很多办法

[ERROR] Failed to execute goal on project fssc-public-core: Could not collect dependencies for project com.eshore.fssc:fssc-public-core:jar:0.0.1-SNAPSHOT
[ERROR] Failed to read artifact descriptor for com.ctg.mq:ctg-mq-remoting:jar:2.7.7
[ERROR] 	Caused by: The following artifacts could not be resolved: com.ctg.mq:ctg-mq-server:pom:2.7.7 (present, but unavailable): Could not transfer artifact com.ctg.mq:ctg-mq-server:pom:2.7.7 from/to huaweicloud (https://mirror.huaweicloud.com/repository/maven/): mirror.huaweicloud.com: nodename nor servname provided, or not known
[ERROR] Failed to read artifact descriptor for com.ctg.mq:ctg-mq-client:jar:2.7.7
[ERROR] 	Caused by: The following artifacts could not be resolved: com.ctg.mq:ctg-mq-server:pom:2.7.7 (present, but unavailable): com.ctg.mq:ctg-mq-server:pom:2.7.7 failed to transfer from https://mirror.huaweicloud.com/repository/maven/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of huaweicloud has elapsed or updates are forced. Original error: Could not transfer artifact com.ctg.mq:ctg-mq-server:pom:2.7.7 from/to huaweicloud (https://mirror.huaweicloud.com/repository/maven/): mirror.huaweicloud.com: nodename nor servname provided, or not known
[ERROR] Failed to read artifact descriptor for com.ctg.mq:ctg-mq-common:jar:2.7.7
[ERROR] 	Caused by: The following artifacts could not be resolved: com.ctg.mq:ctg-mq-server:pom:2.7.7 (present, but unavailable): com.ctg.mq:ctg-mq-server:pom:2.7.7 failed to transfer from https://mirror.huaweicloud.com/repository/maven/ during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of huaweicloud has elapsed or updates are forced. Original error: Could not transfer artifact com.ctg.mq:ctg-mq-server:pom:2.7.7 from/to huaweicloud (https://mirror.huaweicloud.com/repository/maven/): mirror.huaweicloud.com: nodename nor servname provided, or not known
[ERROR] 
[ERROR] -> [Help 1]

分析

• 网上说应该mvn idea:idea重构一下idea与maven依赖，虽然确实能显示打包成功，但是实际启动，运行依然报上述错误参考文章：开发问题，参数错误，程序包找不到，JAR冲突
• 尝试使用 mvn clean package -U -X手动打包，-U参数会强制update本地的jar（不用再专门去删除），还是同类别错误参考文章
• 尝试将maven从3.9.11版本降低到另一台可以打包的电脑3.5.4版本，使用同等setting 依然无法成功maven历史版本
• 尝试取消勾选 maven>Runner>Delegate IDE build/run action to Maven 参考文章
• .......多方尝试均无法解决，太玄学

解决

后来停下来仔细想想，既然是JAR问题，索性找到他们的POM重新下载安装，因为公网没有这几个jar，两台电脑分别是不同系统，win/Mac，使用相同的方法反向安装到maven仓库
idea 反向安装jar包到仓库，可以看这个学习下
使用相同的命令，我确定报错的时候，这几个JAR没啥问题，安装都是相同命令
复制pom

        <dependency>
            <groupId>com.ctg.mq</groupId>
            <artifactId>ctg-mq-common</artifactId>
            <version>2.7.7</version>
        </dependency>

反向命令（注意cmd目录）

  mvn install:install-file -DgroupId=com.ctg.mq -DartifactId=ctg-mq-common -Dversion=2.7.7 -Dpackaging=jar -Dfile=ctg-mq-common-2.7.7.jar

于是决定把这三个有问题的重新删除，重新复制pom路径，重新从可以打包的仓库复制jar重新反向安装
这里注意：maven3.5.4是一个一个提示那个jar有问题，我一个个安装的，3.9.11最新版是一次性提醒你N个jar有问题，所以逐个击破，先clear再install，即可解决，比较伤脑筋，也很麻烦，折腾了一天，早上就想到是这个问题，重新安装了一次，没解决，下午切换3.5.4，先安装，在打包，一个个即可，clear清除后，使用3.9.11打包也没问题，推断出还是jar反向安装的问题，提供个大家一个思路

过程

1. 3.5.4打包
   

2. 3.9.11打包
   

3. 反向安装一个报错的jar，错误减少一个，3.9.11
   

4. 不删除仓库原有的jar直接命令安装，报错
   

5. 清空目录，可以打包，也可试试删除其他的文件