RPM: Java compiler level does not match the version of the installed Java project facet

A. Problem description: Eclipse loads a new project and reports an error, as described below:

Description Resource pathlocation Typejava compiler level does notmatch the version of the installed Java project Facet.we Battemp Unknown facetedproject problem (Java Version mismatch)

B. Analysis of the problem:

Java version mismatch:facted The Java version setting in project is inconsistent with the Java version setting of the project .

C. Problem solving:

Right-click on the current project, property --project Facets , configure the compiled version with the Java compiler version is consistent.

1), the selected item right-click Project->properties, Java Compiler (Type filter Text input Compiler can be quickly positioned) as shown in:

　　

2), modify the Java value of project facets so that it is the same as compiler compliance level: Open With reference 1, such as:

　　

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RPM: Java compiler level does not match the version of the installed Java project facet