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Documentation - Troubleshooting

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Jose Luis Osorno 2019-01-10 13:32:33 +01:00
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docs/troubleshooting.md
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This article describes a list of common issues with the projects generated from the Alfresco SDK 4.0 archetypes and the way to troubleshoot them.
* [Incorrect JDK version](#incorrect-jdk-version)
* [Containers synchronization](#containers-synchronization)
* [Ports conflict](#ports-conflict)
## Incorrect JDK version
### Problem
@ -9,12 +13,12 @@ This article describes a list of common issues with the projects generated from
The ACS container is not starting properly and it is showing Java compatibility errors in the logs:
```
sample-project-acs_1 | org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.example.platformsample.Demo] for bean
with name 'com.example.Demo' defined in class path resource [alfresco/module/sample-project-platform-jar/context/service-context.xml]:
problem with class file or dependent class; nested exception is
java.lang.UnsupportedClassVersionError: com/example/platformsample/Demo has been compiled by a more recent version of the Java
Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load
class [com.example.platformsample.Demo])
org.springframework.beans.factory.CannotLoadBeanClassException:
Error loading class [com.example.platformsample.Demo] for bean with name 'com.example.Demo' defined in class path resource
[alfresco/module/sample-project-platform-jar/context/service-context.xml]:
problem with class file or dependent class; nested exception is java.lang.UnsupportedClassVersionError:
com/example/platformsample/Demo has been compiled by a more recent version of the Java Runtime (class file version 55.0),
this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load class [com.example.platformsample.Demo])
```
This error represents that the source code was compiled using a wrong version of the JDK. This issue can happen if the generated project is compiled using
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```
That way, if you face a port conflict, you only need to change the port in the corresponding maven property and rebuilt and restart the project.