blocks|key|2902665|text|首先尝试清理/构建你的项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2902666|如果问题仍然存在。右键单击项目->，进入properties+->，进入android+->，选择android版本，这样就可以工作了。|2902667|希望能有所帮助。|2902668|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

First try clean / build your project.

If the problem persists. Right click on the project -> go to properties -> go to android -> select the android version and that should work.

Hope it helps.

blocks|key|3116812|text|试试下面的其中一种：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3116813|3116814|“清理”你的Eclipse项目:转到“项目”>“在Eclipse中清理”这似乎适用于我|unordered-list-item|3116815|刷新你的项目文件夹(右键单击你的项目>刷新)重新构建你的项目|3116816|清理你的构建(如果使用Ant或Maven+-清理你的构建)在Eclipse|3116817|‘Switch’工作区中重新创建你的项目-然后切换回来(例如更改为调试，然后切换回Java)|3116818|‘切换’工作区-然后切换回来(例如更改为调试，然后切换回Java)然后切换回Java)|3116819|删除并重新添加您的JRE:|3116820|3116821|1.+Right+Click+on+your+project+>+properties
2.+Click+on+the+Libraries+tab
3.+Click+on+the+JRE
4.+Click+remove,+then+OK
5.+Repeat+1-3+again,+but+add+the+JRE+again|code-block|syntax|javascript|3116822|​|3116823|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|11|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|12|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|13|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|14|8|@]|9|@]|A|$]]|$1|L|3|M|5|E|7|15|8|@]|9|@]|A|$]]|$1|N|3|O|5|E|7|16|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|R|5|S|7|18|8|@]|9|@]|A|$T|U]]|$1|V|3|W|5|6|7|19|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|Y|$]]

Try one of these:

<ul>
<li>‘Clean’ Your Eclipse Project: Go to Project > Clean in Eclipse [This seems to work for me]</li>
<li>Refresh your project folder (right click on your project > refresh)
Re-build your project</li>
<li>Clean your builds (If using Ant or Maven – clean your builds)
Recreate your project in Eclipse</li>
<li>‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)</li>
<li>‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)</li>
<li>Remove and re-add your JRE:

<ol>
<li>Right Click on your project > properties</li>
<li>Click on the Libraries tab</li>
<li>Click on the JRE</li>
<li>Click remove, then OK</li>
<li>Repeat 1-3 again, but add the JRE again</li>
</ol></li>
</ul>

blocks|key|236936|text|还要确保当前应用程序和导入的库/应用程序具有相同的android+API版本...(14、15、17等)...API版本不匹配也会导致同样的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|236937|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Also Make sure that, the current application and imported libraries/applications are having the same android API versions... (14, 15, 17, etc)... The mismatch of API version also will cause the same issue.

blocks|key|238002|text|在我的例子中，我需要转到Properties+>+Java+Build+Path+>+Order+and+Export|type|unstyled|depth|inlineStyleRanges|entityRanges|data|238003|在检查Android+4.0库(可能是不同的版本)后，它开始工作|238004|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

In my case, I Need to go to Properties > Java Build Path > Order and Export

After checking the Android 4.0 Library ( may be different version in your case) it started working

blocks|key|3116831|text|如果你正在使用Android+Studio，这是一个更新的答案。由于它的缓存方式，你可能会遇到这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3116832|如果在任何包中都出现此错误，最好转到文件+->+无效缓存/重新启动，然后选择删除缓存。|offset|length|style|BOLD|3116833|这也可以修复一些问题，这些问题有时可能会在两次重新安装之间持续存在，因为在卸载时Android+Studio不会删除缓存。|3116834|entityMap^0|0|I|2|O|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]|$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

This is an updated answer for if you're using Android Studio. You may run into this problem due to how it caches. 

In the event that you get this error with any package it's a good idea to go to File -> Invalidate Cache/Restart and select to drop the cache.

This can also fix issues that sometimes might persist between reinstalls due to the fact that upon uninstall Android Studio does not delete the cache.

blocks|key|2902776|text|所以其他的解决方案对我都不起作用，但我找到了另一种对我有效的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2902777|右键单击项目->，转到属性->Java构建路径->库->+Add+External+JARs|2902778|您的驱动器\android-sdks\platforms\android-？？|2902779|添加android.jar文件|2902780|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

So none of the other solutions worked for me but I found another way that worked for me.

Right click on the project -> go to properties ->Java Build Path -> Libraries -> Add External JARs

YOUR_DRIVE\android-sdks\platforms\android-??

add android.jar file

I opened a project that I had not opened in a while in Eclipse today. I was unable to compile due to some (inexplicable) errors.

<pre><code>import android.app.Activity;
import android.os.Bundle;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.view.animation.Animation;
import android.content.Intent;
</code></pre>

produces the following error:

<blockquote>
 the import android could not be resolved
</blockquote>

What can I do to resolve this problem?

the import android could not be resolved

Android Studio

Android

Eclipse

Java

今天，我在Eclipse中打开了一个很久没有打开的项目。由于一些(无法解释的)错误，我无法编译。import android.app.Activity;import android.os.Bundle;import android.view.animation.AnimationUtils;import android...

问无法解析导入的android
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