Question

因此，使用JSPM构建我的angular2项目以发布：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？

Answer 1

当我将angular2应用与webpack捆绑在一起时，我遇到了同样的错误。事实证明，在我的情况下，它抱怨document.body是null。如果您在head部分之前的body中包含脚本并且脚本立即尝试使用document.body进行操作，则会发生这种情况。

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>

现在它运作正常。

JSPM Angular2-rc2构建动画错误

1 个答案: