不支持Project facet Java 1.7版

Question

When i update my java I found the issue "Project facet Java version 1.7 is not supported" To resolve this issue follow the steps.

1. Go to Ecllipse , right click on your project folder
2. select the properties
3. now select Project Facets ,here you will see java, click on the version and change the higher version to lower or as per your requirement .

Answer 1

You need to check what type of JRE is there installed in your IDE,

Answer 2

I had also encountered the same problem a while ago when upgrading from Java version 1.6 to 1.7. To resolve this I followed below steps.

1. Right Click on the Project on Project Explorer and click on Properties.
2. Navigate to Java Build Path > “Libraries”
3. Delete any conflicted libraries which have red cross mark on the icons.
4. Check & edit if necessary the JRE System Library Jars.
5. Navigate to Project Facets and select the required java version.

Source: https://tipandtech.wordpress.com/2013/09/13/error-project-facet-java-version-1-7-is-not-supported-in-eclipse/

Try them if you have not found the solution yet.

Shishir

Answer 3

I've just had the same thing. My solution was to remove the 1.6 JRE in Installed JRE's and tick the Java 1.7 one.

This can be found in Window --> Preferences --> Java --> Installed JRE's

Just as Boopathi says.

Answer 4

双击Tomcat服务器 - >运行时环境 - >安装jre->选择jdk 1.7

Answer 5

更改服务器指向的jre（tomcat或任何...）指向JDK而不是JRE

Answer 6

在Window - > Preferences - > Java compiler中检查JDK的版本，然后在Window - > Preferences - > Project Facets - > Java中设置相同的JDK

Answer 7

1.Window Menu -> Preferences 2.On the left, select Server -> Runtime Environments 3.Highlight The server you want for your project and select the “Edit…” button 4.On the “Edit Server Runtime Environment” dialog, change the JRE to be a Java 7 JDK or JRE. 5.Rebuild your project and the error should go away.

Answer 8

当我遇到同样的问题时，我通过改变工作空间解决了这个问题。