angular-cn/public/docs/js/latest/api/di/CyclicDependencyError-class...

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exported from <a href='../di'>angular2/di</a>
defined in <a href="https://github.com/angular/angular/tree/2.0.0-alpha.32/modules/angular2/src/di/exceptions.ts#L71-L95">angular2/src/di/exceptions.ts (line 71)</a>
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Thrown when dependencies form a cycle.
## Example:
```javascript
class A {
constructor(b:B) {}
}
class B {
constructor(a:A) {}
}
```
Retrieving `A` or `B` throws a `CyclicDependencyError` as the graph above cannot be constructed.
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h2 Members
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constructor(injector: Injector, key: Key)
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