报错：Unknown lifecycle phase mybatis-generator-generate

在使用Mybatis自动生成器时，可能出现的错误及解决办法：
错误描述：

[ERROR] Unknown lifecycle phase "mybatis-generator-generate". You must specify a
 valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin
-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle p
hases are: validate, initialize, generate-sources, process-sources, generate-res
ources, process-resources, compile, process-classes, generate-test-sources, proc
ess-test-sources, generate-test-resources, process-test-resources, test-compile,
 process-test-classes, test, prepare-package, package, pre-integration-test, int
egration-test, post-integration-test, verify, install, deploy, pre-clean, clean,
 post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]

解决办法：
1.检查连接的url,username,password是否正确；
2.不要加这句

<classPathEntry    location="mysql-connector-java-5.1.41-bin.jar"/>

<executions>
  <execution>
    <id>generate</id>
    <phase>package</phase>
    <goals>
      <goal>generate</goal>
    </goals>
  </execution>
</executions>

这里的ID要和配置的一样

4.有可能是命令错误
mvn mybatis-generator:generate
mybatis-generator:generate
这两个命令都试一下。

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