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One or more constraints have not been satisfied.

1.One or more constraints have not been satisfied.

解決方案:右擊項目名稱–>找到javaEE tools–>選擇Generate、、

2.進入web.xml–>将web-app_3_0.xsd" version="3.0"改為相應版本

[對照着Dynamic的版本修改]

One or more constraints have not been satisfied.

3.進入項目的.settings檔案夾中打開facet.core/component/修改版本号

One or more constraints have not been satisfied.
One or more constraints have not been satisfied.