JSPM Angular2-rc2构建动画错误

发布时间：2020-12-17 07:24:02 所属栏目：安全来源：网络整理

导读：因此,使用JSPM构建我的angular2项目以供发布：jspm bundle-sfx app dist / main.sfx.js.一切都很好,直到我尝试在浏览器中加载构建的应用程序.这是我得到的错误：` EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils - RootRenderer - D

因此,使用JSPM构建我的angular2项目以供发布：jspm bundle-sfx app dist / main.sfx.js.一切都很好,直到我尝试在浏览器中加载构建的应用程序.这是我得到的错误：`

EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils -> RootRenderer -> DomRootRenderer -> AnimationDriver

ORIGINAL EXCEPTION: TypeError: Cannot read property 'animate' of null

完整日志如下：

The key "target-densitydpi" is not supported.
EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils -> RootRenderer -> DomRootRenderer -> AnimationDriver).
EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils -> RootRenderer -> DomRootRenderer -> AnimationDriver).
ORIGINAL EXCEPTION: TypeError: Cannot read property 'animate' of null
ORIGINAL STACKTRACE:
TypeError: Cannot read property 'animate' of null
    at BrowserDomAdapter.supportsWebAnimation (browser_adapter.js:507)
    at _resolveDefaultAnimationDriver (browser.js:95)
    at ReflectiveInjector_._instantiate (reflective_injector.js:468)
    at ReflectiveInjector_._instantiateProvider (reflective_injector.js:410)
    at ReflectiveInjector_._new (reflective_injector.js:399)
    at ReflectiveInjectorDynamicStrategy.getObjByKeyId (reflective_injector.js:275)
    at ReflectiveInjector_._getByKeyDefault (reflective_injector.js:571)
    at ReflectiveInjector_._getByKey (reflective_injector.js:548)
    at ReflectiveInjector_._getByReflectiveDependency (reflective_injector.js:539)
    at ReflectiveInjector_._instantiate (reflective_injector.js:441)
EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils -> RootRenderer -> DomRootRenderer -> AnimationDriver).
EXCEPTION: Error during instantiation of AnimationDriver! (ViewUtils -> RootRenderer -> DomRootRenderer -> AnimationDriver).
ORIGINAL EXCEPTION: TypeError: Cannot read property 'animate' of null
ORIGINAL STACKTRACE:
TypeError: Cannot read property 'animate' of null
    at BrowserDomAdapter.supportsWebAnimation (browser_adapter.js:507)
    at _resolveDefaultAnimationDriver (browser.js:95)
    at ReflectiveInjector_._instantiate (reflective_injector.js:468)
    at ReflectiveInjector_._instantiateProvider (reflective_injector.js:410)
    at ReflectiveInjector_._new (reflective_injector.js:399)
    at ReflectiveInjectorDynamicStrategy.getObjByKeyId (reflective_injector.js:275)
    at ReflectiveInjector_._getByKeyDefault (reflective_injector.js:571)
    at ReflectiveInjector_._getByKey (reflective_injector.js:548)
    at ReflectiveInjector_._getByReflectiveDependency (reflective_injector.js:539)
    at ReflectiveInjector_._instantiate (reflective_injector.js:441)
InstantiationError {_wrapperMessage: "DI Exception",_originalException: TypeError: Cannot read property 'animate' of null
    at BrowserDomAdapter.supportsWebAnimation (htt…,_originalStack: "TypeError: Cannot read property 'animate' of null?… (https://randohinn.com/w2w/main.sfx.js:47702:34)",_context: null,_wrapperStack: "Error: DI Exception?    at InstantiationError.Wrap… (https://randohinn.com/w2w/main.sfx.js:47702:34)"…}

什么可能导致这样的错误？

当我使用webpack捆绑angular2应用程序时,我遇到了同样的错误.事实证明,在我的情况下,它抱怨document.body为null.当您在正文部分和脚本中立即尝试使用document.body操作脚本时,会发生这种情况.

我的index.html是这样的：

<!DOCTYPE html>
<html>
<head>
    <base href="">

    <title>Legal Review</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <script src="build/thirdparty.js"></script>
    <script src="build/app.js"></script>
</head>

<body>
    <app-component>
        Loading...
    </app-component>
</body>

</html>

所以,我已经移动了这样的脚本：

<!DOCTYPE html>
<html>
<head>
    <base href="">

    <title>Legal Review</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
</head>

<body>
    <app-component>
        Loading...
    </app-component>

    <script src="build/thirdparty.js"></script>
    <script src="build/app.js"></script>
</body>

</html>

现在它工作正常.

（编辑：李大同）

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