我在使用 Maven 时遇到问题。来自 Eclipse Oomph 的 Unzip Setup Task 存储库 ( https://github.com/maybeec/oomph-task-unzip ) 的子模块“task-unzip”的 Maven mvn clean 包在几台机器/设置上失败并出现以下错误：
[INFO] --- tycho-compiler-plugin:0.22.0:compile (default-compile) @ com.github.maybeec.oomph.task.unzip ---
[INFO] Compiling 13 source files to C:\FOLDER\repositories\oomph-task-unzip\task-unzip\target\classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 26.983 s
[INFO] Finished at: 2020-10-28T18:35:49+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:0.22.0:compile (default-compile) on project com.github.maybeec.oomph.task.unzip: Compilation failure: Compilation failure:
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[7]
[ERROR] import org.apache.commons.compress.archivers.ArchiveEntry;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[8]
[ERROR] import org.apache.commons.compress.archivers.ArchiveInputStream;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[9]
[ERROR] import org.apache.commons.compress.archivers.ArchiveStreamFactory;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[10]
[ERROR] import org.apache.commons.compress.compressors.CompressorInputStream;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[11]
[ERROR] import org.apache.commons.compress.compressors.CompressorStreamFactory;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[12]
[ERROR] import org.apache.commons.compress.utils.IOUtils;
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] The import org.apache.commons cannot be resolved
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[47]
[ERROR] CompressorInputStream cIS = new CompressorStreamFactory().createCompressorInputStream(in);
[ERROR] ^^^^^^^^^^^^^^^^^^^^^
[ERROR] CompressorInputStream cannot be resolved to a type
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[47]
[ERROR] CompressorInputStream cIS = new CompressorStreamFactory().createCompressorInputStream(in);
[ERROR] ^^^^^^^^^^^^^^^^^^^^^^^
[ERROR] CompressorStreamFactory cannot be resolved to a type
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[64]
[ERROR] ArchiveInputStream archiveIS = new ArchiveStreamFactory().createArchiveInputStream(fileIS);
[ERROR] ^^^^^^^^^^^^^^^^^^
[ERROR] ArchiveInputStream cannot be resolved to a type
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[64]
[ERROR] ArchiveInputStream archiveIS = new ArchiveStreamFactory().createArchiveInputStream(fileIS);
[ERROR] ^^^^^^^^^^^^^^^^^^^^
[ERROR] ArchiveStreamFactory cannot be resolved to a type
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[65]
[ERROR] ArchiveEntry entry;
[ERROR] ^^^^^^^^^^^^
[ERROR] ArchiveEntry cannot be resolved to a type
[ERROR] C:\FOLDER\repositories\oomph-task-unzip\task-unzip\src\com\github\maybeec\oomph\task\unzip\core\impl\UnzipUtilImpl.java:[77]
[ERROR] IOUtils.copy(archiveIS, out);
[ERROR] ^^^^^^^
[ERROR] IOUtils cannot be resolved
[ERROR] 12 problems (12 errors)
[ERROR] -> [Help 1]
Maven 实际上正在将 Apache commons-compress-1.19.jar 下载到本地 Maven 存储库，并且它也被复制到项目的 lib 文件夹中。所以这是可行的，并且依赖关系实际上存在于文件系统上。但是，Maven 找不到这种依赖关系。手动将其添加到项目中，可以解决解决失败，但这不能解决它不适用于 Maven 的问题。
在 Eclipse 中导入子模块显示相同。Eclipse 无法自动完成对“org.apache.commons.*”的“import”语句：
该子模块的“属性”>“构建”路径不显示任何 Maven 依赖项（实际上“Maven 依赖项”列表甚至都不存在！我必须按照https://stackoverflow.com/a/27337064/5446400并编辑 .类路径文件）。但是它仍然是空的：
在这个问题上搜索和工作了几个小时，我无法解释为什么 Maven 的行为方式如此。感谢您的支持！