1. 异常现象
从 Intellij IDEA 2017.1 版本升级到当前最新版本 Intellij IDEA 2019.2.2 之后，打开原有的项目时出现异常：
14:42 Unable to import Maven project
See logs for details
Show Log in Explorer
Intellij IDEA 异常日志：
2019-09-19 14:54:44,349 [2556395] ERROR - #org.jetbrains.idea.maven - IntelliJ IDEA 2019.2.2 Build #IU-192.6603.28
2019-09-19 14:54:44,349 [2556395] ERROR - #org.jetbrains.idea.maven - JDK: 11.0.3; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o
2019-09-19 14:54:44,349 [2556395] ERROR - #org.jetbrains.idea.maven - OS: Windows 10
2019-09-19 14:54:44,352 [2556398] ERROR - #org.jetbrains.idea.maven - Last Action: Maven.ShowSettings
2019-09-19 14:55:06,491 [2578537] ERROR - #org.jetbrains.idea.maven - com.google.inject.CreationException: Unable to create injector, see the following errors:
1) No implementation for org.apache.maven.model.path.PathTranslator was bound.
while locating org.apache.maven.model.path.PathTranslator
for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.pathTranslator(Unknown Source)
at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)
2) No implementation for org.apache.maven.model.path.UrlNormalizer was bound.
while locating org.apache.maven.model.path.UrlNormalizer
for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.urlNormalizer(Unknown Source)
at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)
2 errors
java.lang.RuntimeException: com.google.inject.CreationException: Unable to create injector, see the following errors:
1) No implementation for org.apache.maven.model.path.PathTranslator was bound.
while locating org.apache.maven.model.path.PathTranslator
for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.pathTranslator(Unknown Source)
at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)
2) No implementation for org.apache.maven.model.path.UrlNormalizer was bound.
while locating org.apache.maven.model.path.UrlNormalizer
for field at org.apache.maven.model.interpolation.AbstractStringBasedModelInterpolator.urlNormalizer(Unknown Source)
at org.codehaus.plexus.DefaultPlexusContainer$1.configure(DefaultPlexusContainer.java:350)
2 errors
at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:543)
at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:159)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:106)2. 排查分析
升级前的 Maven 版本是 Apache Maven 3.5.0，升级后版本是 Apache Maven 3.6.2：
1）确认 conf\settings.xml 有无问题。
2）Maven 新老版本兼容有问题：
- 当前 Maven 最新版本 Maven 3.6.2 有可能与最新版的 IDEA 有冲突或兼容问题
- 当前 Maven 最新版本 Maven 3.6.2 本身存在兼容问题
3. 解决方案
下载并使用 Maven 3.6.1 与 Intellij IDEA 2019.2.2 搭配。重新打开原有项目，问题解决。
