我对Maven很新，并尝试编译一个非常简单的项目。这是我的pom.xml文件：
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bharani.aws</groupId>
<artifactId>com.bharani.aws.dynamo</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-bom</artifactId>
<version>1.11.106</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.16</version>
<scope>provided</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
当我执行mvn compile时，我收到了一堆cannot find symbol错误。显然，不会下载和使用依赖项。这是错误日志：
f45c89aa1b75:bharani-aws-dynamo janakiab$ mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building com.bharani.aws.dynamo 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ com.bharani.aws.dynamo ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ com.bharani.aws.dynamo ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 2 source files to /Users/janakiab/code/bharani-aws-dynamo/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[3,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[4,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[5,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[6,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[7,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[8,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[9,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[10,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[11,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[16,2] cannot find symbol
symbol: class Data
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[17,2] cannot find symbol
symbol: class Builder
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[18,2] cannot find symbol
symbol: class ToString
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[19,2] cannot find symbol
symbol: class NoArgsConstructor
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[20,2] cannot find symbol
symbol: class AllArgsConstructor
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[21,2] cannot find symbol
symbol: class DynamoDBTable
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[3,26] package com.amazonaws.auth does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[4,26] package com.amazonaws.auth does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[5,29] package com.amazonaws.regions does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[6,41] package com.amazonaws.services.dynamodbv2 does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[7,41] package com.amazonaws.services.dynamodbv2 does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[8,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[33,13] cannot find symbol
symbol: class AmazonDynamoDB
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[41,44] cannot find symbol
symbol: class AmazonDynamoDB
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[41,13] cannot find symbol
symbol: class DynamoDBMapper
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[24,6] cannot find symbol
symbol: class DynamoDBAutoGeneratedKey
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[25,6] cannot find symbol
symbol: class DynamoDBHashKey
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[28,6] cannot find symbol
symbol: class DynamoDBAttribute
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[31,6] cannot find symbol
symbol: class DynamoDBAttribute
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[34,6] cannot find symbol
symbol: class DynamoDBAttribute
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[37,6] cannot find symbol
symbol: class DynamoDBAttribute
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[40,6] cannot find symbol
symbol: class DynamoDBAttribute
location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[22,15] cannot find symbol
symbol: class AmazonDynamoDB
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[23,15] cannot find symbol
symbol: class DynamoDBMapper
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[36,38] cannot find symbol
symbol: class AWSStaticCredentialsProvider
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[37,29] cannot find symbol
symbol: class BasicAWSCredentials
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[35,29] cannot find symbol
symbol: variable Regions
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[34,16] cannot find symbol
symbol: variable AmazonDynamoDBClientBuilder
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[42,20] cannot find symbol
symbol: class DynamoDBMapper
location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[46,28] cannot find symbol
symbol: method builder()
location: class com.bharani.aws.CustomerInfo
[INFO] 39 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.560 s
[INFO] Finished at: 2017-10-04T18:46:40-07:00
[INFO] Final Memory: 15M/302M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.3:compile (default-compile) on project com.bharani.aws.dynamo: Compilation failure: Compilation failure:
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[3,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[4,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[5,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[6,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[7,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[8,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[9,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[10,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[11,14] package lombok does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[16,2] cannot find symbol
[ERROR] symbol: class Data
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[17,2] cannot find symbol
[ERROR] symbol: class Builder
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[18,2] cannot find symbol
[ERROR] symbol: class ToString
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[19,2] cannot find symbol
[ERROR] symbol: class NoArgsConstructor
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[20,2] cannot find symbol
[ERROR] symbol: class AllArgsConstructor
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[21,2] cannot find symbol
[ERROR] symbol: class DynamoDBTable
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[3,26] package com.amazonaws.auth does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[4,26] package com.amazonaws.auth does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[5,29] package com.amazonaws.regions does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[6,41] package com.amazonaws.services.dynamodbv2 does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[7,41] package com.amazonaws.services.dynamodbv2 does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[8,54] package com.amazonaws.services.dynamodbv2.datamodeling does not exist
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[33,13] cannot find symbol
[ERROR] symbol: class AmazonDynamoDB
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[41,44] cannot find symbol
[ERROR] symbol: class AmazonDynamoDB
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[41,13] cannot find symbol
[ERROR] symbol: class DynamoDBMapper
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[24,6] cannot find symbol
[ERROR] symbol: class DynamoDBAutoGeneratedKey
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[25,6] cannot find symbol
[ERROR] symbol: class DynamoDBHashKey
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[28,6] cannot find symbol
[ERROR] symbol: class DynamoDBAttribute
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[31,6] cannot find symbol
[ERROR] symbol: class DynamoDBAttribute
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[34,6] cannot find symbol
[ERROR] symbol: class DynamoDBAttribute
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[37,6] cannot find symbol
[ERROR] symbol: class DynamoDBAttribute
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/CustomerInfo.java:[40,6] cannot find symbol
[ERROR] symbol: class DynamoDBAttribute
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[22,15] cannot find symbol
[ERROR] symbol: class AmazonDynamoDB
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[23,15] cannot find symbol
[ERROR] symbol: class DynamoDBMapper
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[36,38] cannot find symbol
[ERROR] symbol: class AWSStaticCredentialsProvider
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[37,29] cannot find symbol
[ERROR] symbol: class BasicAWSCredentials
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[35,29] cannot find symbol
[ERROR] symbol: variable Regions
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[34,16] cannot find symbol
[ERROR] symbol: variable AmazonDynamoDBClientBuilder
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[42,20] cannot find symbol
[ERROR] symbol: class DynamoDBMapper
[ERROR] location: class com.bharani.aws.Main
[ERROR] /Users/janakiab/code/bharani-aws-dynamo/src/main/java/com/bharani/aws/Main.java:[46,28] cannot find symbol
[ERROR] symbol: method builder()
[ERROR] location: class com.bharani.aws.CustomerInfo
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[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 read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
f45c89aa1b75:bharani-aws-dynamo janakiab$
如果我错过了什么，有人能指出我吗？
感谢。
答案 0 :(得分：1)
您的依赖关系是在＆lt; dependencyManagement＆gt;部分。在本节中，它定义了父项目中的依赖项，并允许在子模块中使用相同的版本。如果你删除＆lt; dependencyManagement＆gt;标签和/或在＆lt;中添加相同的东西依赖关系＆gt;它应该正常工作。
有关详细信息，请参阅maven dependency management page。