Question

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project com.xx.xx1: Compilation failure
[ERROR] /src/com/abc/exam/ChapterActivity.java:[282,52] cannot find symbol
[ERROR] symbol  : class Chapter
[ERROR] location: class com.abc.exam.ChapterActivity`

ChapterActivity.java

package com.abc.exam;
import com.abc.exam.ChapterActivity.ChapterAdapter.ViewHolder;
import com.abc.exam.dm.Chapter;
public class ChapterActivity extends ListActivity {
     public class ChapterAdapter extends ArrayAdapter<Chapter> {
          public class ViewHolder {
          }
     }
}

ChapterAdapter是ChapterActivity中的内部类。

ChapterActivity和Chapter不在同一个包中，但引入了Chapter包。我很想知道它是如何失败的，我做了一个测试

（1）改变如此ArrayAdapter<abc.exam.dm.Chapter>，它的构建正常。当我

（2）将章节移动到与ChapterActivity相同的包中，也没关系。

（3）只需将内部类ChapterAdapter放在一边，它也可以构建好。

（4）删除包'import com.abc.exam.ChapterActivity.ChapterAdapter.ViewHolder;'它也没关系

（5）更改导入包位置

import com.abc.exam.dm.Chapter;
import com.abc.exam.ChapterActivity.ChapterAdapter.ViewHolder;

没关系。

所以我们可以弄清楚，这是一个构建依赖（泛型类型，Circle依赖，内部类）问题。

的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>com.abc.exam</artifactId>
<groupId>com.abc</groupId>
<version>2.7.3-SNAPSHOT</version>
<packaging>apk</packaging>
<name>PigExam</name>
<dependencies>
    <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>android</artifactId>
        <version>2.2.1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.madhouse.android.ads</groupId>
        <artifactId>smartmad-sdk-android.jar</artifactId>
        <version>1</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/libs/smartmad-sdk-android.jar</systemPath>
    </dependency>
    <dependency>
        <groupId>com.admogo</groupId>
        <artifactId>AdsMOGO-SDK-Android.jar</artifactId>
        <version>1</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/libs/AdsMOGO-SDK-Android.jar</systemPath>
    </dependency>
</dependencies>

<build>
    <sourceDirectory>${project.basedir}/src</sourceDirectory>
    <plugins>
        <plugin>
            <groupId>com.jayway.maven.plugins.android.generation2</groupId>
            <artifactId>android-maven-plugin</artifactId>
            <version>3.0.0-alpha-14</version>
            <configuration>
                <androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
                <assetsDirectory>${project.basedir}/assets</assetsDirectory>
                <resourceDirectory>${project.basedir}/res</resourceDirectory>
                <nativeLibrariesDirectory>${project.basedir}/src</nativeLibrariesDirectory>
                <sdk>
                    <!-- platform or api level (api level 4 = platform 1.6) -->
                    <path>/android/android-sdk-linux</path>
                    <platform>10</platform>
                </sdk>
                <deleteConflictingFiles>true</deleteConflictingFiles>
                <undeployBeforeDeploy>true</undeployBeforeDeploy>
            </configuration>
            <extensions>true</extensions>
        </plugin>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <compilerVersion>1.6</compilerVersion>
                <fork>true</fork>
                <source>1.6</source>
                <target>1.6</target>
                <encoding>UTF-8</encoding>
            </configuration>
        </plugin>
    </plugins>
</build>
</project>

Maven编译泛型类型失败

0 个答案: