Maven專案在編譯及匯入Eclipse時出現的錯誤彙總處理
Maven專案在編譯及匯入Eclipse時出現的錯誤處理彙總
Maven在構建專案時確實是比較強大，而且也越來越流行，目前不但越來越多的開源專案，甚至越來越多的商業專案都在使用Maven。但是不得不說Maven裡面的坑真心的多，最近手頭的幾個專案都是使用Maven進行構建的，兄弟們都被Maven搞的淚奔啊
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一、Maven相關專案地址
Maven專案主頁：
Maven下載地址：
Maven Eclipse Plugin
Maven-android-plugin專案主頁：
在
線上更新地址：
M2E Maven Archiver Connector
http://repo1.maven.org/maven2/.m2e/connectors/m2eclipse-mavenarchiver/0.15.0/N/0.15.0.201207090125/ Enabled
m2e-android
http://rgladwell.github.com/m2e-android/updates/ Enabled
二、編譯錯誤彙總
1、關於編譯Maven版本問題
(1) Maven3.0.5版本編譯時，
Maven-android-plugin最高支援到3.5.3，更高版本的Maven-android-plugin，編譯會出錯。
(2) Maven3.1.1版本編譯時，
Maven-android-plugin最好使用3.8.1
並且在Maven工程下的Android專案中，要指定SDK版本。否則提示SDK路徑錯誤。新增如下：
<plugin> <groupId>com.jayway.maven.plugins.android.generation2</groupId> <artifactId>android-maven-plugin</artifactId> <version>3.8.1</version> <extensions>true</extensions> <configuration> <sdk> <platform>15</platform> </sdk> </configuration> </plugin>
若匯入Eclipse環境，需要在CMD下執行mvneclipse:eclipse,然後使用匯入已存在的Maven專案，該過程會重建Maven的Eclipse專案。
在Eclipse環境下執行Maven install時可能會報錯，找不到tools.jar包。
那麼要確認Eclipse中JREs的路徑是否正確.
Condition:在使用Maven打包專案的時候出現這個異常，提示tools沒有找到。
解決：確定你的eclipse在 首選項--》java--》installed JREs裡面的jre指向的是JDK而不是JRE，tools.jar是JDK才有的。當然，你也可以在環境變數classpath裡面將jdk的lib目錄加加進去。
三、各類錯誤詳細
3.1命令列編譯打包問題
3.1.1 Maven3.0.5
1、配置Maven-android-plugin3.3.0~3.5.3
均可在CMD命令列模式下使用mvninstall 編譯通過
2、配置Maven-Android-plugin3.6.0~3.8.1
配置Maven-Android-plugin3.6.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.6.0:generate-sources(default-generate-sources) on project co
ntroltower-android: Execution default-generate-sources ofgoal com.jayway.maven.
plugins.android.generation2:android-maven-plugin:3.6.0:generate-sourcesfailed:
No AndroidPlatform Version/API Level has been configured. Add e.g. <sdk><plat
form>17</platform></sdk> to the pluginconfiguration. -> [Help 1]
[ERROR]配置Maven-Android-plugin3.7.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.7.0:generate-sources(default-generate-sources) on project co
ntroltower-android: Execution default-generate-sources ofgoal com.jayway.maven.
plugins.android.generation2:android-maven-plugin:3.7.0:generate-sourcesfailed:
No Android APILevel has been configured. Add e.g.<sdk><platform>17</platform
></sdk> to the plugin configuration. -> [Help1]配置Maven-Android-plugin3.8.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project co
ntroltower-android: The plugincom.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.8.0 requires Maven version 3.1.1 ->[Help 1]
[ERROR]錯誤處理：
對於Maven-android-plugin3.6.0~3.7.0版本，提示的是缺少配置Android SDK的配置項，可在Android專案的Maven配置檔案pom.xml中新增AndroidSDK版本。
如下：
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<inherited>true</inherited>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.7.0</version>
<extensions>true</extensions>
<configuration>
<sdk>
<platform>15</platform>//-->此處為Android SDK的版本號
</sdk>
</configuration>
</plugin>
</plugins>
</pluginManagement>之後mvn install即可編譯打包通過。
對於Maven-Android-plugin3.8.0其錯誤提示明確要求該外掛需配置Maven3.1.1，故如果要使用Maven-Android-plugin3.8.0版本以上的外掛則必須使用Maven3.1.1版本。
3.1.2 Maven3.1.1
在Android專案的maven配置檔案中配置不同的Maven-android-plugin版本後，在CMD命令列環境中執行：mvn install，出現的各種錯誤如下：
配置Maven-Android-plugin3.3.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sourcesfailed:
A required class wasmissing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;配置Maven-Android-plugin3.5.3，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.5.3:generate-sources:Lorg/sonatype/aether/RepositorySystem;配置Maven-Android-plugin3.6.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.6.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;配置Maven-Android-plugin3.7.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sourcesfailed:
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;配置Maven-Android-plugin3.8.0，提示的錯誤：
[ERROR] Failed to execute goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.<sdk><platform>17</platform></sdk> to the pluginconfiguration. -> [Help 1]配置Maven-Android-plugin3.8.1，提示的錯誤：
[ERROR] Failed to execute goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.1:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.1:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.<sdk><platform>17</platform></sdk> to the pluginconfiguration. -> [Help 1]錯誤處理：
對於Maven3.1.1+Maven-androird-plugin3.3.0~3.7.0配置的錯誤提示：
A required classwas missing while executingcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.7.0:generate-sources:Lorg/sonatype/aether/RepositorySystem;只能更新Maven-android-plugin外掛至3.8.0+版本
對於Maven3.1.1+Maven-androird-plugin3.8.0+配置的錯誤提示：
[ERROR] Failed to execute goal com.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sources(default-generate-sources) on project controltower-android: Executiondefault-generate-sources of goalcom.jayway.maven.plugins.android.generation2:android-maven-plugin:3.8.0:generate-sourcesfailed:
No Android API Level has been configured. Add e.g.<sdk><platform>17</platform></sdk> to the pluginconfiguration. -> [Help 1]需要在Andorid的Maven專案配置檔案中新增Android SDK的版本配置項，如下：
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<inherited>true</inherited>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.7.0</version>
<extensions>true</extensions>
<configuration>
<sdk>
<platform>15</platform>//-->此處為Android SDK的版本號
</sdk>
</configuration>
</plugin>
</plugins>
</pluginManagement>綜上所出現的錯誤，命令列編譯打包Maven工程可使用的組合為：
Maven3.0.5+Maven-android-plugin3.3.0~3.5.3
maven3.1.1+Maven-android-plugin3.8.0~3.8.1
3.2 匯入Eclipse時發生的錯誤提示
通過mvn eclipse:eclipse生成eclipse專案
在使用Eclipse匯入maven專案時，提示錯誤：Resolve Later
Maven3.0.5+maven-android-plugin3.3.0提示：
Maven3.0.5+Maven-android-plugin3.5.3提示：
Maven3.0.5+Maven-android-plugin3.7.0提示：
使用Maven-android-plugin3.7.0在命令列編譯通過後，Mvn eclipse:eclipse之後匯入Eclipse環境中時提示錯誤：
No marketplaceentries found to handle android-maven-plugin:3.8.0:consume-aar in Eclipse. Please see Help for more information.
網路連線問題：
[ERROR] Failed to execute goal onproject javadrone-utils: Could not resolve dep
endencies forproject com.codeminders:javadrone-utils:jar:1.3: Failed to collect
dependencies atcom.twilight:h264-decoder:jar:1.0: Failed to read artifact desc
riptor forcom.twilight:h264-decoder:jar:1.0: Could not transfer artifact com.tw
ilight:h264-decoder:pom:1.0from/to central (http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.orgrefused: Connection timed out: connect -> [Help 1]四、關於錯誤Unsupported IClasspathEntrykind=4
在將Maven專案匯入到Eclipse中時，出現錯誤完整提示如下：
Aninternal error occurred during: "Importing Maven projects".
Unsupported IClasspathEntry kind=4
這個異常會導致專案無法使用springide啟動
英文解釋如下：
Theproblem is caused by the fact that the STS (the Spring IDE/Eclipse) uses them2e(clipse) plugin but that eclipse:eclipse has been probably been run on theproject. When m2e encounters a "var" .classpath entry, it throws thiserror.
Inorder to fix this problem, you need to do 2 things:
2. Disable the maven nature for theproject (via the right-click menu), run mvn eclipse:clean (while your projectis open inSTS/eclipse), and then re-enable the maven nature.
中文解釋就是
問題是因為使用springide使用了m2eclipse外掛，但是這個外掛的使用前提是不允許命令mvn eclipse:eclipse在專案上執行過，如果執行過，就會丟擲這個異常。
現階段修復這個問題需要做兩件事
2、去掉專案的maven特性，右鍵選單就能去除，然後執行mvn eclipse:clean，並且重新啟用maven 特性