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

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版本不匹配把

首先点击Windows -> Perfenrences -> java -> Compiler

我们可以看到 Compiler comliance level 的那个数字是10

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然后点击 eclipse 顶上的

Project —> Properties —> Project Facets 然后修改java版本,修改成10

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结束

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