blocks|key|1779942|text|在您的package.json中，更改devkit构建器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1779943|"@angular-devkit/build-angular":+"%5E0.800.1",|code-block|syntax|javascript|1779944|至|1779945|"@angular-devkit/build-angular":+"%5E0.10.0",|1779946|这对我很管用。|1779947|祝好运。|1779948|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

In your package.json change the devkit builder.

<pre><code>"@angular-devkit/build-angular": "^0.800.1",
</code></pre>

to 

<pre><code>"@angular-devkit/build-angular": "^0.10.0",
</code></pre>

it works for me. 
good luck.

blocks|key|5308228|text|下面的内容对我很有效|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308229|npm+uninstall+@angular-devkit/build-angular
npm+install+@angular-devkit/build-angular@0.13.0|code-block|syntax|javascript|5308230|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Following worked for me

<pre><code>npm uninstall @angular-devkit/build-angular
npm install @angular-devkit/build-angular@0.13.0
</code></pre>

blocks|key|5308303|text|这里的每个人都在关注于将@+angular+-devkit/build-angular降级到@angular+7.x版本以实现兼容性，但他们应该做的是将@angular/cli升级到angular+8版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5308304|问题是系统cli仍然停留在旧版本，并且不会被ng+update自动更新(因为它在angular控制的项目之外)，所以当它试图访问angular库时，它被留在一个不兼容的版本。|5308305|降级@angular-devkit/build-angular只会导致更多的不兼容。|5308306|npm+i+--global+@angular/cli@latest|code-block|syntax|javascript|5308307|可以在不破坏其他地方的情况下解决问题。|5308308|entityMap^0|24|C|0|M|9|0|2|T|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|J|3|K|5|L|7|11|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|12|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|R|$]]

Everyone here is focusing on downgrading @angular-devkit/build-angular to @angular 7.x versions for compatibility, but what they should be doing is to upgrade <code>@angular/cli</code> to angular 8 versions.

The problem is that the system cli is still stuck at an old version and isn't automatically updated by <code>ng update</code> (because it is outside the angular controlled project), so it is being left at an incompatible version when trying to access the angular libraries.

Downgrading <code>@angular-devkit/build-angular</code> just causes more incompatibilities.

<pre><code>npm i --global @angular/cli@latest
</code></pre>

will fix the problem without breaking things elsewhere.

blocks|key|1780244|text|每个人都在关注将@angular-devkit/build-angular版本降级到X，或者将@angular/cli版本升级到Y或最新版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1780245|然而，请不要盲目地+X+or+Y+or+latest作为答案。(尽管通常情况下，降级devkit应该更好，因为升级CLI是一个破坏性的变化)|1780246|要选择的正确版本始终取决于您的Angular+(angular-cli)版本。|1780247|Angular+CLI+v8.3.19+->+0.803.19
Angular+CLI+v8.3.17+->+0.803.17
Angular+CLI+v7.3.8+->+0.13.8
Angular+CLI+v6-lts+->+0.8.9|code-block|syntax|javascript|1780248|有关其他特定版本，请访问：https://github.com/angular/angular-cli/tags。找到您的命令行界面版本，在某些标签中，它们确实提到了@angular-devkit/**包的相应版本。|1780249|注意:如果你想升级你的命令行界面版本，你应该首先考虑升级到你的主要版本的最新版本，而不是简单地跳到下一个主要版本。|BOLD|1780250|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/angular/angular-cli/tags^0|8|T|1B|C|0|A|G|0|0|0|2B|I|D|17|0|0|0|1L|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]|$9|14|A|15|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|19|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1A|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|Q|3|R|5|6|7|1H|8|@$9|1I|A|1J|B|S]]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|U|$V|$5|W|X|Y|E|$Z|10]]]]

Everyone is focusing on downgrading <code>@angular-devkit/build-angular</code> version to X, or upgrading <code>@angular/cli</code> version to Y or latest.

However, Please do not blindly suggest an <code>X or Y or latest</code> as answers. (Though usually, downgrading devkit should be better because upgrading CLI is a breaking change)

The correct version to choose, always depends on your Angular (angular-cli) version.

<pre><code>Angular CLI v8.3.19 -&gt; 0.803.19
Angular CLI v8.3.17 -&gt; 0.803.17
Angular CLI v7.3.8 -&gt; 0.13.8
Angular CLI v6-lts -&gt; 0.8.9
</code></pre>

For other specific versions, visit: <a href="https://github.com/angular/angular-cli/tags" rel="noreferrer">https://github.com/angular/angular-cli/tags</a>. Find your CLI version, and in some tags, they do mention the corresponding versions for <code>@angular-devkit/**</code> packages.

Note: If you want to upgrade your CLI version, you should first consider upgrading to latest of your major version, do not simply jump to the next major version.

blocks|key|1512509|text|您的@angular-devkit与@angular/cli版本不兼容，因此只需安装较旧的版本，例如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1512510|npm+install+@angular-devkit/build-angular@0.13.8+@angular-devkit/build-ng-packagr@0.13.8|code-block|syntax|javascript|1512511|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Your @angular-devkit is incompatible with @angular/cli version, so just install older one like this for example:

<pre><code>npm install @angular-devkit/build-angular@0.13.8 @angular-devkit/build-ng-packagr@0.13.8
</code></pre>

blocks|key|1512517|text|在尝试升级到Ng8后出现相同的问题，由于依赖问题而失败。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1512518|1512519|+npm+uninstall+@angular-devkit/build-angular|blockquote|offset|length|style|CODE|1512520|1512521|1512522|然后我用了，|1512523|1512524|+npm+install+@angular-devkit/build-angular@0.12.4|1512525|1512526|1512527|修复它..。|1512528|entityMap^0|0|0|1|17|0|0|0|0|0|1|1C|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|Y|8|@$F|Z|G|10|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|12|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|13|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|O|3|P|5|E|7|15|8|@$F|16|G|17|H|I]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1A|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|V|$]]

Same issue after trying to upgrade to Ng8 which failed due to dependency issues. 

<blockquote>
 <code>npm uninstall @angular-devkit/build-angular</code>
</blockquote>

then I used,

<blockquote>
 <code>npm install @angular-devkit/build-angular@0.12.4</code>
</blockquote>

fixed it...

blocks|key|1780108|text|我也有同样的问题，但多亏了Ekta+Gandhi的评论，我解决了它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1780109|1780110|我终于找到了解决方案。|blockquote|1780111|1780112|1)首先，通过给出简单的命令git+checkout+package.json来消除package.json文件中的所有更改。|1780113|2)然后在@angular-devkit/+package.json+-angular-~0.800.1中更改构建之后(添加尾部而不是上限)|1780114|3)然后运行命令rm+-rf节点模块/|1780115|4)然后通过发出命令npm+clean+cache+-f来清除捕获|1780116|5)最后运行命令npm+install。这对我很有效。|1780117|1780118|……与Dimuthu提出的修改一起|1780119|1780120|在@angular-devkit/build-angular"："0.13.4“上运行了。|1780121|1780122|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|11|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|12|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|13|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|14|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|15|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|16|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|17|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|19|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|U|3|V|5|E|7|1B|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Y|$]]

I had the same problem, but I solved it thanks to the comment of Ekta Gandhi:

<blockquote>
 Finally i found the solution.
 
 1) Firstly eliminate all changes in package.json file by giving simple command git checkout package.json.
 
 2) Then after make change in package.json in @angular-devkit/build-angular- ~0.800.1(Add tail instead of cap)
 
 3) Then run command rm -rf node_modules/
 
 4) Then clean catch by giving command npm clean cache -f
 
 5) And at last run command npm install. This works for me.
</blockquote>

.... Along with the modification proposed by Dimuthu

<blockquote>
 Made it to @angular-devkit/build-angular": "0.13.4" and it worked.
</blockquote>

blocks|key|3890531|text|这发生在我安装Angular+8的时候，有一些我无法解决的不兼容问题。我不得不降级，因为我走进了兔子洞，摆弄着每个版本，直到我找到一个可以工作的版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3890532|首先，TypeScript已经过时了，默认安装添加了对TypeScript+3.1.6的引用，并且需要3.4或更高版本。|3890533|npm+install+typescript@">=3.4+<3.5"|offset|length|style|CODE|3890534|其次，使用devkit+0.800.1或0.800.1总是以不兼容告终。我尝试了许多组合，但我还不确定它是否完全兼容，特别是因为我使用的是一个更老的引导程序，我还不能升级。|3890535|最后，我尝试降级(转到package.json并找到devDependencies)，直到其中一个起作用。|3890536|@angular-devkit/build-angular":+"0.13.4"|3890537|我确信你的问题是依赖版本，但我不能告诉你是哪一个。试着降级一下吧。|3890538|entityMap^0|0|0|0|Z|0|0|0|0|14|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@$F|W|G|X|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|Y|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|Z|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|10|8|@$F|11|G|12|H|I]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|13|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|S|$]]

This happened to me when I installed Angular 8, there are some incompatibilities I couldn't solve. I had to downgrade because I went down the rabbit hole juggling around with every version until I found one that worked.

First, TypeScript was outdated, the default installation added a reference to TypeScript 3.1.6 and it requires 3.4 or greater.

<code>npm install typescript@"&gt;=3.4 &lt;3.5"</code>

Second, using the devkit 0.800.1 or 0.800.1 always ended up in incompatibilities. I tried many combinations but I am not sure it's fully compatible yet, specially because I am using one bootstrap a bit older and I cannot upgrade yet.

Finally I tried to downgrade (go to package.json and find the devDependencies) until one of them worked.

<code>@angular-devkit/build-angular": "0.13.4"</code>

I am sure your problem is dependencies versions but I cannot tell you which one. Give it a try downgrading.

blocks|key|3890761|text|我也遇到了这个问题，对于我来说，当我做更多的更新时，会出现更多的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3890762|对我来说，最终起作用的或多或少是删除了angular+cli，并通过以下步骤重新安装它：|3890763|npm+uninstall+-g+@angular/cli
npm+cache+clean+--force
npm+install+-g+@angular/cli|code-block|syntax|javascript|3890764|这对我很有帮助来源：how+to+uninstall+angular/cli|offset|length|3890765|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/39566257/how-to-uninstall-angular-cli^0|0|0|0|A|S|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

I was also coming across this issue and for me when doing more updates more issues occurred. 

What worked for me in the end was more or less to remove angular cli and re install it with these steps:

<pre><code>npm uninstall -g @angular/cli
npm cache clean --force
npm install -g @angular/cli
</code></pre>

this helped me out
source: <a href="https://stackoverflow.com/questions/39566257/how-to-uninstall-angular-cli">how to uninstall angular/cli</a>

blocks|key|3890932|text|我也面临着这个问题，并努力解决它，我已经尝试了上述所有选项，但都没有解决我的问题。这个问题是由于angular/cli和angular-devkit的版本不匹配造成的，所以我执行了以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3890933|3890934|手动更改的文件版本：|ordered-list-item|3890935|3890936|@angular-devkit/build-angular"："%5E0.13.9"，|3890937|@angular/cli":+"~7.0.3",+//这是Angular7，for+Angular8+:+0.803.23+|offset|length|style|CODE|3890938|Deleted+package-lock.json|unordered-list-item|3890939|
|3890940|Executed+:+npm+install+|3890941|3890942|它解决了我的问题。|3890943|entityMap^0|0|0|0|0|0|0|O|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|12|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|14|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|15|8|@$K|16|L|17|M|N]]|9|@]|A|$]]|$1|O|3|P|5|Q|7|18|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|19|8|@]|9|@]|A|$]]|$1|T|3|U|5|Q|7|1A|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Z|$]]

I also faced this issue and struggled hours to solve it, I have tried all of the above options but nothing solved my problem. This issue occurs due to version mismatch of angular/cli and angular-devkit, so I did the following :

<ol>
<li>Manually changed version of files:

@angular-devkit/build-angular": "^0.13.9",

<code>@angular/cli": "~7.0.3",</code> //This is for Angular7, for Angular8 : 0.803.23 </li>
<li>Deleted package-lock.json</li>
<li>Executed : npm install </li>
</ol>

It solved my problem.

blocks|key|5308382|text|在我这方面，它是包装的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308383|邮箱：|5308384|+@angular-devkit/build-angular|blockquote|5308385|5308386|5308387|和|5308388|5308389|+@angular-devkit/build-ng-packagr|5308390|5308391|5308392|不是同一版本，更新build-ng-packagr到与build-angular相同的版本解决了我的问题。|offset|length|style|CODE|5308393|entityMap^0|0|0|0|0|0|0|0|0|0|0|9|G|R|D|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Z|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|A|$]]|$1|K|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|L|3|M|5|F|7|14|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|17|8|@$R|18|S|19|T|U]|$R|1A|S|1B|T|U]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|W|$]]

On my side it was package

<blockquote>
 @angular-devkit/build-angular
</blockquote>

and 

<blockquote>
 @angular-devkit/build-ng-packagr
</blockquote>

was not the same version, Updating <code>build-ng-packagr</code> to same version as <code>build-angular</code> fixed my problem.

blocks|key|5308467|text|如果你移动到angular+8或9，这将会起到作用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308468|ng+update+@angular/cli|code-block|syntax|javascript|5308469|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If your moving to angular 8 or 9 this will do the trick

<pre><code>ng update @angular/cli
</code></pre>

blocks|key|3890954|text|您可以简单地审核您的代码，然后|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3890955|#sudo+su+
rm+-rf+package-lock.json+node_modules
sudo+npm+i+--save+|code-block|syntax|javascript|3890956|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can simply audit your code and then
<pre><code>#sudo su 
rm -rf package-lock.json node_modules
sudo npm i --save 
</code></pre>

blocks|key|5308538|text|对我来说，真正起作用的是用以下命令更新应用程序及其依赖项：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308539|ng+update+@angular/cli+@angular/core|code-block|syntax|javascript|5308540|Angular+documentation|offset|length|5308541|entityMap|0|LINK|mutability|MUTABLE|url|https://angular.io/cli/update^0|0|0|0|L|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

What actually worked for me was to update the application and its dependencies with:
<pre><code>ng update @angular/cli @angular/core
</code></pre>
<a href="https://angular.io/cli/update" rel="nofollow noreferrer">Angular documentation</a>

blocks|key|5308145|text|你有不兼容的依赖项我解决了这个问题，从另一个项目角度更改package.json，然后更改此packag.json后，您只更改您拥有的依赖项版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308146|更改写入后：|5308147|-npm链接|5308148|-npm服务器-o|5308149|然后是工作:)|5308150|+++{
+++"name":+"angular-jwt-auth",
+++"version":+"0.0.0",
+++"scripts":+{
+++"ng":+"ng",
+++"start":+"ng+serve",
+++"build":+"ng+build",
+++"test":+"ng+test",
+++"lint":+"ng+lint",
+++"e2e":+"ng+e2e"
+++},
+++"private":+true,
+++"dependencies":+{
+++"@angular/animations":+"%5E7.1.4",
+++"@angular/cdk":+"%5E7.3.1",
+++"@angular/common":+"~7.1.0",
+++"@angular/compiler":+"~7.1.0",
+++"@angular/core":+"~7.1.0",
+++"@angular/forms":+"~7.1.0",
+++"@angular/http":+"%5E6.1.10",
+++"@angular/material":+"%5E7.3.1",
+++"@angular/platform-browser":+"~7.1.0",
+++"@angular/platform-browser-dynamic":+"~7.1.0",
+++"@angular/router":+"~7.1.0",
+++"@ng-bootstrap/ng-bootstrap":+"%5E4.2.0",
+++"@types/jquery":+"%5E3.3.29",
+++"angular-6-datatable":+"%5E0.8.0",
+++"bootstrap":+"%5E4.3.1",
+++"chart.js":+"%5E2.8.0",
+++"core-js":+"%5E2.5.4",
+++"jquery":+"%5E3.4.1",
+++"rxjs":+"~6.3.3",
+++"zone.js":+"~0.8.26"
++++},
+++"devDependencies":+{
+++"@angular-devkit/build-angular":+"~0.11.0",
+++"@angular/cli":+"~7.1.0",
+++"@angular/compiler-cli":+"~7.1.0",
+++"@angular/language-service":+"~7.1.0",
+++"@types/chart.js":+"%5E2.7.53",
+++"@types/jasmine":+"%5E2.8.16",
+++"@types/jasminewd2":+"%5E2.0.6",
+++"@types/node":+"~8.9.4",
+++"codelyzer":+"~4.2.1",
+++"jasmine-core":+"~2.99.1",
+++"jasmine-spec-reporter":+"~4.2.1",
+++"karma":+"~3.1.1",
+++"karma-chrome-launcher":+"~2.2.0",
+++"karma-coverage-istanbul-reporter":+"~2.0.1",
+++"karma-jasmine":+"~1.1.2",
+++"karma-jasmine-html-reporter":+"%5E0.2.2",
+++"protractor":+"~5.4.0",
+++"ts-node":+"~7.0.0",
+++"tslint":+"~5.11.0",
+++"typescript":+"~3.1.6"
+++}|code-block|syntax|javascript|5308151|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You have incompatibly dependencies i solved this problem by change the package.json form another project angular and then after change to this packag.json, you change only the dependencies versions you have.

after the change write:

-npm link

-npm serve -o

then it's work :)

<pre><code> {
 "name": "angular-jwt-auth",
 "version": "0.0.0",
 "scripts": {
 "ng": "ng",
 "start": "ng serve",
 "build": "ng build",
 "test": "ng test",
 "lint": "ng lint",
 "e2e": "ng e2e"
 },
 "private": true,
 "dependencies": {
 "@angular/animations": "^7.1.4",
 "@angular/cdk": "^7.3.1",
 "@angular/common": "~7.1.0",
 "@angular/compiler": "~7.1.0",
 "@angular/core": "~7.1.0",
 "@angular/forms": "~7.1.0",
 "@angular/http": "^6.1.10",
 "@angular/material": "^7.3.1",
 "@angular/platform-browser": "~7.1.0",
 "@angular/platform-browser-dynamic": "~7.1.0",
 "@angular/router": "~7.1.0",
 "@ng-bootstrap/ng-bootstrap": "^4.2.0",
 "@types/jquery": "^3.3.29",
 "angular-6-datatable": "^0.8.0",
 "bootstrap": "^4.3.1",
 "chart.js": "^2.8.0",
 "core-js": "^2.5.4",
 "jquery": "^3.4.1",
 "rxjs": "~6.3.3",
 "zone.js": "~0.8.26"
 },
 "devDependencies": {
 "@angular-devkit/build-angular": "~0.11.0",
 "@angular/cli": "~7.1.0",
 "@angular/compiler-cli": "~7.1.0",
 "@angular/language-service": "~7.1.0",
 "@types/chart.js": "^2.7.53",
 "@types/jasmine": "^2.8.16",
 "@types/jasminewd2": "^2.0.6",
 "@types/node": "~8.9.4",
 "codelyzer": "~4.2.1",
 "jasmine-core": "~2.99.1",
 "jasmine-spec-reporter": "~4.2.1",
 "karma": "~3.1.1",
 "karma-chrome-launcher": "~2.2.0",
 "karma-coverage-istanbul-reporter": "~2.0.1",
 "karma-jasmine": "~1.1.2",
 "karma-jasmine-html-reporter": "^0.2.2",
 "protractor": "~5.4.0",
 "ts-node": "~7.0.0",
 "tslint": "~5.11.0",
 "typescript": "~3.1.6"
 }
</code></pre>

blocks|key|1508243|text|我遇到了这个问题，这就是我解决它的方法。问题主要是你的Angular版本不支持你的Node.js版本。因此，最好的解决方案是将您的Node.js升级到最新的稳定版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1508244|对于一个干净的Node.js升级，我建议使用n。|1508245|npm+install+-g+n
npm+cache+clean+-f
sudo+n+stable
npm+update+-g|code-block|syntax|javascript|1508246|现在请检查您是否已更新：|1508247|node+-v
npm+-v|1508248|有关更多详细信息，请查看此链接：here|offset|length|1508249|entityMap|0|LINK|mutability|MUTABLE|url|https://solarianprogrammer.com/2016/04/29/how-to-upgrade-nodejs-mac-os-x/^0|0|0|0|0|0|G|4|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|13|8|@]|9|@$O|14|P|15|1|16]]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

I had this issue, this is how i have solved it.
The problem mostly is that your Angular version is not supporting your Node.js version for the build.
So the best solution is to upgrade your Node.js to the most current stable one.

For a clean upgrade of Node.js, i advise using n. if you are using Mac.

<pre><code>npm install -g n
npm cache clean -f
sudo n stable
npm update -g
</code></pre>

and now check that you are updated: 

<pre><code>node -v
npm -v
</code></pre>

For more details, check this link: <a href="https://solarianprogrammer.com/2016/04/29/how-to-upgrade-nodejs-mac-os-x/" rel="nofollow noreferrer">here</a>

blocks|key|1508300|text|上面给出的答案对我都不起作用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1508301|我最初的目标是用VSCode修复我的项目中编译的常量。|1508302|我尝试了很多很多方法，但什么都没用--这个项目只是不能兼容！|1508303|最后我发现了这里的问题所在：|1508304|我从我公司的存储库中克隆了这个项目，当对项目的现有部分进行编码时，那里的所有代码都必须与依赖项的版本完全一致。|1508305|最后，我再次删除了之前克隆的项目(相当多次)，并再次克隆了(也是多次)，除了运行"npm+install“什么也没做，然后一切都开始工作。|1508306|我在这里学到的教训是：|1508307|有时，当您尝试修复某些问题时，您会使情况变得更糟(我遇到的问题是编译项目的的常量)。|1508308|但这并不意味着我们不能尝试解决问题。我们可以的。但当一切变得一团糟时，我们最好还是使用原始代码。|1508309|幸运的是，我的项目的常量编译只发生一次，而不是一直发生。它没有修复，但我必须忍受它，否则我的项目甚至不能编译。|1508310|entityMap^0|0|F|0|O|3|0|0|C|P|5|0|0|0|1J|0|G|6|T|6|10|W|0|0|12|4|0|0|1C|0|0|1J|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|1A|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|1B|8|@$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|N|3|O|5|6|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1L|8|@]|D|@]|E|$]]|$1|R|3|S|5|6|7|1M|8|@$9|1N|A|1O|B|C]]|D|@]|E|$]]|$1|T|3|U|5|6|7|1P|8|@$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|V|3|W|5|6|7|1S|8|@$9|1T|A|1U|B|C]]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1V|8|@]|D|@]|E|$]]]|Y|$]]

NONE of the above-given answers works for me. 

My original goal was to fix the sometimes CONSTANT COMPILING of my project with VSCode.

I tried many, many ways, but NOTHING was working -- the project just WON'T COMPILIE! 

Finally I found out what the problem here is: 

I cloned the project from my company's repository, and all the code from there HAS TO go exactly with the versions of dependencies when the existing part of the project was coded. 

In the end, I deleted the previously cloned project AGAIN (quite a few times), and cloned AGAIN (also a few times), and DID NOTHING BUT RAN "npm install", and everything started to work. 

The lesson I learned here is that:

Sometimes you'll make the situation worse when you try to fix some problems (the one I had was the CONSTANT COMPILING of my project). 

But it doesn't mean we cannot try to fix the problems. We can. But when everything becomes a mess, we'd better go with the original code. 

Fortunately the CONSTANT COMPILING of my project happens only once a while, not all the time. It's not fixed, but I have to bear with it, otherwise my project won't even compile.

blocks|key|5308270|text|它的工作是重新安装@angular-devkit/build-angular@0.13.4|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5308271|npm+install+@angular-devkit/build-angular@0.13.4+--save-dev|code-block|syntax|javascript|5308272|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

it's work reinstall @angular-devkit/build-angular@0.13.4

<pre><code>npm install @angular-devkit/build-angular@0.13.4 --save-dev
</code></pre>

I am getting this error while running my application. Here are the details of my application. 

<pre><code>Angular CLI: 7.3.3 
Node: 10.15.1 
Angular: 7.2.7 
@angular-devkit/architect -0.13.3 
@angular-devkit/build-angular- 0.800.1 
@angular-devkit/build-optimizer - 0.800.1 
@angular-devkit/build-webpack - 0.800.1 
@angular-devkit/core -7.3.3 
@angular-devkit/schematics -7.3.3 
@angular/cli -7.3.3 
@ngtools/webpack -8.0.1 
@schematics/angular -7.3.3 
@schematics/update 0.13.3 
rxjs 6.3.3 
typescript 3.2.4 
webpack 4.30.0
</code></pre>

I have already tried cache clean.

Errors: Data path ".builders['app-shell']" should have required property 'class'

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我在运行我的应用程序时遇到了这个错误。以下是我的申请的详细信息。Angular CLI: 7.3.3 Node: 10.15.1 Angular: 7.2.7 @angular-devkit/architect -0.13.3 @angular-devkit/build-angular- 0.800.1 @angular-devkit/build-optimizer - 0.800.1 @angu

问错误:数据路径".builders['app-shell']“应具有必需的属性”“class”“
EN

回答 18

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问错误:数据路径".builders['app-shell']“应具有必需的属性”“class”“EN

回答 18

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问错误:数据路径".builders['app-shell']“应具有必需的属性”“class”“
EN