导入 javafx.scene.control.Alert 无法解析
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The import javafx.scene.control.Alert cannot be resolved
提问by Nadeem
I am getting the error with following two imports in Eclipse:
我在 Eclipse 中出现以下两个导入错误：
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
The errors are: "The import javafx.scene.control.Alert cannot be resolved" and same is true for the 2nd import statement.
错误是：“无法解析导入 javafx.scene.control.Alert”，第二个导入语句也是如此。
I am using Eclipse Version: Luna Service Release 2 (4.4.2) and have installed e(fx)clipse with latest JDK 1.8 (1.8.0_45).
我正在使用 Eclipse 版本：Luna Service Release 2 (4.4.2) 并安装了 e(fx)clipse 和最新的 JDK 1.8 (1.8.0_45)。
There is no problem with other javafx related import statements, such as
其他javafx相关的import语句没有问题，比如
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.input.MouseEvent;
回答by user2922935
I had the same problem, until I installed the JDK 1.8.0_60. That's right, installing the latest JDK helped!
我遇到了同样的问题，直到我安装了 JDK 1.8.0_60。没错，安装最新的 JDK 有帮助！
After you install the latest JDK, change the settings on the Eclipse There are two steps to the process:
安装最新的 JDK 后，更改 Eclipse 上的设置的过程有两个步骤：
Select the appropriate JRE in
Eclipse > Preferences > Java > Installed JREsas shown here:
- In
Project > Properties > Java Build Path, Add Library as depicted below:
- In
选择适当的 JRE，
Eclipse > Preferences > Java > Installed JREs如下所示：- 在
Project > Properties > Java Build Path，添加库如下图：
- 在
回答by Central Thinking Unit
I got the same problem on Eclipse (MacOSX Yosemite) this morning but yesterday everything worked... To solve the problem I just deselected the checkbox for another JDK in Project > Properties > Java Build Pathrestarted Eclipse, reselected the good one (JDK 1.8.0_60), restarted Eclipse again and voilà ! Just a weird bug with checkboxes...
今天早上我在 Eclipse (MacOSX Yosemite) 上遇到了同样的问题，但昨天一切正常......为了解决这个问题，我只是在Project > Properties > Java Build Path重新启动的 Eclipse 中取消选中另一个 JDK 的复选框，重新选择好的（JDK 1.8.0_60），再次重新启动 Eclipse瞧！只是一个带有复选框的奇怪错误......
Hope it ll help you.
希望它会帮助你。
