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java - Maven:mvn 编译失败。 "package does not exist"。依赖项包含在 maven 中，其他 SO 解决方案不起作用。我缺少什么？

转载 作者：行者123 更新时间：2023-11-30 02:48:19 25 4
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我知道关于这个主题还有很多其他答案，尽管this question似乎是最有用的，但这些解决方案都没有使我完全解决我的问题。所以我需要更多帮助。

我有一个 Netbeans 项目，是由我之前在我公司工作过的人创建的，该项目从未使用 Maven 构建过，而且我还没有完全深入了解该项目的源代码。然而，由于该项目的依赖项数量对我来说似乎难以承受，因此我决定需要找出一个管理解决方案。这让我接触到 Maven，然后间接接触到 Apache Archiva。

因此，我建立了一个 Archiva 存储库并上传了项目所需的所有依赖项。所有这些 Artifact 都是 JAR 文件。然后，我在预先存在的项目目录中创建了一个 pom.xml 文件，并调整了build设置以匹配该项目。现在项目目录如下所示:

ProjectStructure and Import Error In Source Code

在上面的屏幕截图中，您还可以看到第 12 行的错误。此错误显示“package.imgscalr 不存在”，稍后 mvncompile 会回显该错误。

完整的项目 POM 如下所示:

    <?xml version="1.0" encoding="UTF-8"?>
    <!--LISCENSE HEADER-->
    <project>
        <groupId>com.glsarchives</groupId>
        <artifactId>GLSLib</artifactId>
        <version>1.0</version>
        <modelVersion>4.0.0</modelVersion>
        <packaging>jar</packaging>
        <dependencies>
            <dependency>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
                <version>2.1</version>
            </dependency>
            <dependency>
                <groupId>at.unbounded</groupId>
                <artifactId>serialization.jar</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>cecore</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>celib</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>ceplugins</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>cereports</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>cesession</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>ceutils</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>corbaidl</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>ebus405</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>MetafileRenderer</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>rasapp</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>com.businessobjects.sdk</groupId>
                <artifactId>rascore</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>1.2.17</version>
            </dependency>
            <dependency>
                <groupId>org.dspace.xmlui.concurrent</groupId>
                <artifactId>Concurrent</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
                <groupId>org.eclipse.persistence</groupId>
                <artifactId>eclipselink</artifactId>
                <version>2.5.2</version>
            </dependency>
            <dependency>
                <groupId>org.imgscalr</groupId>
                <artifactId>imgscalr-lib</artifactId>
                <version>4.2</version>
            </dependency>
            <dependency>
                <groupId>org.lucee</groupId>
                <artifactId>commons-logging</artifactId>
                <version>1.1.1</version>
            </dependency>
            <dependency>
                <groupId>org.lucee</groupId>
                <artifactId>xml-apis</artifactId>
                <version>0.0</version>
            </dependency>
            <dependency>
              <groupId>org.eclipse.persistence</groupId>
              <artifactId>javax.persistence</artifactId>
              <version>0.0</version>
            </dependency>
            <dependency>
              <groupId>org.netbeans.lib</groupId>
              <artifactId>awtextra</artifactId>
              <version>0.0</version>
              <scope>compile</scope>
            </dependency>
            <dependency>
              <groupId>org.netbeans.external</groupId>
              <artifactId>AbsoluteLayout</artifactId>
              <version>0.0</version>
            </dependency>
        </dependencies>

        <build>
            <sourceDirectory>./src</sourceDirectory>
            <finalName>GLSLib</finalName>
            <plugins>
                <plugin>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.1</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                    </configuration>
                </plugin>
            </plugins>
        </build>

        <repositories>
            <repository>
              <id>GLS-Java-Repo</id>
              <name>Java Repository</name>
              <url>http://archiva:8080/repository/GLS-Java-Repo/</url>
              <releases>
                <enabled>true</enabled>
              </releases>
              <snapshots>
                <enabled>true</enabled>
              </snapshots>
            </repository>
          </repositories>
          <pluginRepositories>
              <pluginRepository>
                  <id>GLS-Java-Repo</id>
                  <name>Java Repository</name>
                  <url>http://archiva:8080/repository/GLS-Java-Repo/</url>
                  <releases>
                      <enabled>true</enabled>
                  </releases>
                  <snapshots>
                      <enabled>true</enabled>
                  </snapshots>
              </pluginRepository>
          </pluginRepositories>
    </project>

当我运行mvncompile-X时，我得到以下输出:

[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building GLSLib 1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ GLSLib ---

[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources,
i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\GLS_DEVELOPER\GLS_Projects\GLS_Lib
\Repositories\GIT\GLS-Lib_PR_Repo\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ GLSLib ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. b
uild is platform dependent!
[INFO] Compiling 91 source files to C:\GLS_DEVELOPER\GLS_Projects\GLS_Lib\Reposi
tories\GIT\GLS-Lib_PR_Repo\target\classes
[INFO] -------------------------------------------------------------
[WARNING] COMPILATION WARNING :
[INFO] -------------------------------------------------------------
[WARNING] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Rep
o/src/gls/ui/emp/EmpComboBoxPanel.java: Some input files use unchecked or unsafe
 operations.
[WARNING] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Rep
o/src/gls/ui/emp/EmpComboBoxPanel.java: Recompile with -Xlint:unchecked for deta
ils.
[INFO] 2 warnings
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[12,20] package org.imgscalr does not exist
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[106,18] cannot find symbol
  symbol:   variable Scalr
  location: class gls.image.ImagePanel
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[128,18] cannot find symbol
  symbol:   variable Scalr
  location: class gls.image.ImagePanel
[INFO] 3 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.154 s
[INFO] Finished at: 2016-09-14T12:31:34-04:00
[INFO] Final Memory: 17M/321M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.
1:compile (default-compile) on project GLSLib: Compilation failure: Compilation
failure:
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[12,20] package org.imgscalr does not exist
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[106,18] cannot find symbol
[ERROR] symbol:   variable Scalr
[ERROR] location: class gls.image.ImagePanel
[ERROR] /C:/GLS_DEVELOPER/GLS_Projects/GLS_Lib/Repositories/GIT/GLS-Lib_PR_Repo/
src/gls/image/ImagePanel.java:[128,18] cannot find symbol
[ERROR] symbol:   variable Scalr
[ERROR] location: class gls.image.ImagePanel
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal o
rg.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on p
roject GLSLib: Compilation failure
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:212)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThre
adedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl
eStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
356)
Caused by: org.apache.maven.plugin.compiler.CompilationFailureException: Compila
tion failure
        at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(Abstrac
tCompilerMojo.java:858)
        at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.ja
va:129)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(Default
BuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:207)
        ... 20 more
[ERROR]
[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 rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureExc
eption

所以，明显的问题是maven似乎找不到org.imgscalr包。但是，我的依赖项都没有被覆盖或删除——基于 mvn dependency:tree -Dverbose 生成的依赖项树，包括 imgscalr-lib 依赖项(这是一个JAR，其中包含 org.imgscalr 包和 META-INF)。

由于怀疑损坏，我删除了本地存储库中的 imgscaler-lib 文件夹 - 然后删除了整个存储库 - 这些都不起作用。编译后，Maven 重新从我的 Archiva 存储库中获取了所有文件，但问题仍然存在。

我检查了mvn help: effective-pom，它似乎与我的pom.xml匹配。

我还尝试按照链接问题中的建议运行mvn dependency:copy-dependencies，并且我的所有库都已成功复制到目标目录中，包括有问题的库: org.imgscalr

我在这里缺少什么？

编辑:更新了 pom.xml 以添加存储库信息

编辑:我的 pom.xml 中的版本号非常奇怪，是因为我从前任给我的文件夹中将 Artifact 上传到了 Archiva。很多松散的 Artifact 没有任何版本号，所以我将这些未知的版本号标记为“0.0”

编辑:在 pom.xml 添加存储库信息后再次删除存储库。运行另一个干净的目标和另一个编译目标。 Maven 重新获取依赖项。我已经确认 Maven 正在从我的 Archiva 存储库中获取 Artifact 。问题仍然存在。

最佳答案

来自评论:

The package is DEFINITELY in the .jar. Not a .class file, but 3 .java source files. Including one called Scalr.java which appears to be the one that the compiler is complaining about.

这是你的问题。 Jars 应包含已编译的 .class 文件，而不是源文件，例如 *.java 文件。您已将源 jar 放入 Archiva，但它们应该是包含编译文件的 jar。

我猜您是通过某种非正统的方式获得这些 .jar，而不是使用常规工具。

关于java - Maven:mvn 编译失败。 "package does not exist"。依赖项包含在 maven 中，其他 SO 解决方案不起作用。我缺少什么？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39496282/

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