我试图在Eclipse中使用Maven构建项目。这是我的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>com.osnewhorizon</groupId>
<artifactId>Convert</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Convert</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.3</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>com.osnewhorizon.Convert.App</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
这非常有效，并按预期构建jar-with-dependencies。但是当我向<dependencies>部分添加一个依赖项时，它无法构建。我添加的依赖项是：
<dependency>
<groupId>com.groupdocs</groupId>
<artifactId>groupdocs-conversion</artifactId>
<version>1.3.0</version>
<type>jar</type></dependency>
库被安装到mvn，因为我将它添加到依赖项中，我可以使用它类，但是当尝试运行mvn clean verify时，我已经使用以下日志构建了构建失败（更新日志使用-X参数）：
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 31.836 s
[INFO] Finished at: 2016-04-12T11:38:00+02:00
[INFO] Final Memory: 34M/847M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.3:single (default) on project Convert: Execution default of goal org.apache.maven.plugins:maven-assembly-plugin:2.3:single failed. IllegalArgumentException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.3:single (default) on project Convert: Execution default of goal org.apache.maven.plugins:maven-assembly-plugin:2.3:single failed.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224)
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.buildProject(LifecycleModuleBuilder.java:108)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal org.apache.maven.plugins:maven-assembly-plugin:2.3:single failed.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:144)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
... 19 more
Caused by: java.lang.IllegalArgumentException
at sun.net.www.ParseUtil.decode(ParseUtil.java:202)
at java.net.JarURLConnection.parseSpecs(JarURLConnection.java:181)
at java.net.JarURLConnection.<init>(JarURLConnection.java:158)
at sun.net.www.protocol.jar.JarURLConnection.<init>(JarURLConnection.java:81)
at sun.net.www.protocol.jar.Handler.openConnection(Handler.java:41)
at java.net.URL.openConnection(URL.java:972)
at java.net.URL.openStream(URL.java:1038)
at org.codehaus.plexus.components.io.resources.PlexusIoURLResource.getContents(PlexusIoURLResource.java:34)
at org.codehaus.plexus.archiver.ArchiveEntry.getInputStream(ArchiveEntry.java:106)
at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.zipFile(AbstractZipArchiver.java:552)
at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.addResources(AbstractZipArchiver.java:387)
at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.createArchiveMain(AbstractZipArchiver.java:312)
at org.codehaus.plexus.archiver.zip.AbstractZipArchiver.execute(AbstractZipArchiver.java:211)
at org.codehaus.plexus.archiver.AbstractArchiver.createArchive(AbstractArchiver.java:897)
at org.apache.maven.plugin.assembly.archive.archiver.AssemblyProxyArchiver.createArchive(AssemblyProxyArchiver.java:512)
at org.apache.maven.plugin.assembly.archive.DefaultAssemblyArchiver.createArchive(DefaultAssemblyArchiver.java:185)
at org.apache.maven.plugin.assembly.mojos.AbstractAssemblyMojo.execute(AbstractAssemblyMojo.java:452)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:133)
... 20 more
[ERROR]
[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/PluginExecutionException
任何帮助将不胜感激。