blocks|key|4491549|text|我知道这是一个古老的问题，但我遇到了它并解决了它。但是遇到这种情况的任何人，只需关闭您的项目并重新打开它。这为我解决了这个问题。我使用的是Android+Studio。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4491550|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|$]]

I know this is an old question, but I came across it and resolved it. But anyone that runs into this, simply close your project and reopen it. That solved it for me. I'm using Android Studio.

blocks|key|4491677|text|在使用Visual+Code和编写第一个应用教程时，我也遇到了同样的问题。只需关闭并重新打开项目即可解决此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4491678|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|$]]

I had the same problem when using Visual Code and following the Write your first app tutorial. This issue was resolved by just closing and reopening the project.

blocks|key|4491518|text|运行pub+get。如果您使用WebStorm，则可以使用pubspec.yaml文件上下文菜单中的相应操作来执行此操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4491519|entityMap|0|LINK|mutability|MUTABLE|url|https://www.dartlang.org/tools/pub/cmd/pub-get.html^0|2|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Run <a href="https://www.dartlang.org/tools/pub/cmd/pub-get.html" rel="nofollow">pub get</a>. If you use WebStorm you can do it using corresponding action from the pubspec.yaml file context menu.

blocks|key|4490621|text|解决方案:重启Android+Studio。或者:只需关闭并重新打开项目。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4490622|也有类似的问题。对于任何想要调查的人，这里是我的步骤。我决定尝试一下那个库https://pub.dartlang.org/packages/path_provider|offset|length|4490623|我通过Android+Studio添加了依赖和下载包。在我的项目中，我还在外部库中看到了path_provider.dart。那么，这个文件是存在的！但是Studio向我展示了一个错误"Target+of+URI不存在“--如何修复它？|4490624|++++import+'package:path_provider/path_provider.dart';|code-block|syntax|javascript|4490625|我使用path_provider项目中的示例代码：https://pub.dartlang.org/packages/path_provider#-example-tab-|4490626|entityMap|0|LINK|mutability|MUTABLE|url|https://pub.dartlang.org/packages/path_provider|1|https://pub.dartlang.org/packages/path_provider#-example-tab-^0|0|11|1B|0|0|0|0|P|1P|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@$D|10|E|11|1|12]]|A|$]]|$1|F|3|G|5|6|7|13|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|9|@$D|16|E|17|1|18]]|A|$]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]]]

Solution: restart Android Studio. Or: just close and reopen project.

Had similar problem. For anyone who want to investigate, here my steps.
I decided to try that library <a href="https://pub.dartlang.org/packages/path_provider" rel="nofollow noreferrer">https://pub.dartlang.org/packages/path_provider</a>

I added dependency and download package via Android Studio. I also see path_provider.dart in External Libraries in my project. So, the file exist! But Studio show me an error "Target of URI doesn't exist" - how to fix it?

<pre><code> import 'package:path_provider/path_provider.dart';
</code></pre>

I use example code from path_provider project: <a href="https://pub.dartlang.org/packages/path_provider#-example-tab-" rel="nofollow noreferrer">https://pub.dartlang.org/packages/path_provider#-example-tab-</a>

blocks|key|4490662|text|如果你从Google的codelabs复制代码。你需要注意记忆空格。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4490663|例如在pubspec.yaml中|offset|length|style|CODE|4490664|这一点：|4490665|flutter:
++sdk:+flutter

++cupertino_icons:+%5E0.1.0
++english_words:+%5E3.1.0+++#+add+this+line|code-block|syntax|javascript|4490666|不是这样的吗：|4490667|flutter:
++sdk:+flutter

++cupertino_icons:+%5E0.1.0
++english_words:+%5E3.1.0+++#+add+this+line|4490668|entityMap^0|0|3|C|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|Z|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|11|8|@]|9|@]|A|$M|N]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

If you are copying code from codelabs by Google. You need to take care of remember spaces. 

E.g. in <code>pubspec.yaml</code>

this:

<pre><code>flutter:
 sdk: flutter

 cupertino_icons: ^0.1.0
 english_words: ^3.1.0 # add this line
</code></pre>

is not this:

<pre><code>flutter:
 sdk: flutter

 cupertino_icons: ^0.1.0
 english_words: ^3.1.0 # add this line
</code></pre>

blocks|key|4491738|text|我用的是VS代码。对我起作用的是点击它推荐的选项，这个选项第一次看起来很愚蠢:创建文件'file_name.dart‘它将一个初始化的文件与那个位置的文件合并在一起。我删除了生成的不必要的东西，这样就可以了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4491739|我尝试了在互联网上的许多页面上找到的所有其他东西。不同种类的命令。重新开张，换个地方。已重新安装插件。|4491740|编辑1:虚警，暂时的。但是，最快的方法，特别是在合并后使用CTRL+%2BZ的情况下。我修不好，天哪|4491741|编辑2:我现在在Android+Studio上打开，它显示文件的编码错误。我更改了编码(它有一个按钮可以选择另一个)，错误消失了！！(至少到目前为止)|4491742|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|$]]

I was using VS Code.
What worked for me was clicking on the option it recommends that seems dumb at first time: create file 'file_name.dart'
It merged an initialized file with the one that had in that location. I deleted the unnecessary stuff that is generated, and it was good to go.

I tried everything else I found on many pages over the internet. Diverse kinds of commands. Reopening, changing locations. Reinstalled the plugins.

EDIT 1: False alarm, it is temporary. But still, the quickest method, especially if you use CTRL + Z after it merged. I can't fix it OMG

EDIT 2: I opened now on Android Studio, and it said the file was in the wrong encoding. I changed the encoding (it has a button to select another one), and the errors disappeared!! (at least until now)

blocks|key|4490763|text|似乎不再支持dart:mirrors库。请看这里：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4490764|https://github.com/flutter/flutter/issues/1150|offset|length|4490765|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

It seems that dart:mirrors library is no more supported. See here:
<a href="https://github.com/flutter/flutter/issues/1150" rel="nofollow noreferrer">https://github.com/flutter/flutter/issues/1150</a>

Please check my project:

<a href="https://github.com/MaximGo/WebTech_Projekt.git" rel="noreferrer">https://github.com/MaximGo/WebTech_Projekt.git</a>

In the file 'tetrisclient.dart' I want to import the generated package from the lib-folder.

<pre><code>import 'package:tetris/tetris.dart';
</code></pre>

But I get the Erro 'Target of URI does not exists'

Thanks for your help!

Package import - Target of URI does not exists

Android Studio

WebStorm

Android

请查看我的项目：在'tetrisclient.dart‘文件中，我想从lib文件夹导入生成的包。import 'package:tetris/tetris.dart';但我得到的错误是“URI的目标不存在”谢谢你的帮忙!

问包导入- URI的目标不存在
EN

回答 7

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问包导入- URI的目标不存在EN

回答 7

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问包导入- URI的目标不存在
EN