C# 不能在已经启动的任务上调用 RunSynchronously
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RunSynchronously may not be called on task that was already started
提问by amateur
I am having an issue with a c# class I created for unit testing my application, in particular the issue is around a System.Threading.Tasks.Task object.
我在创建用于对我的应用程序进行单元测试的 ac# 类时遇到问题，特别是该问题与 System.Threading.Tasks.Task 对象有关。
I have a list of such objects and on them I want to execute each synchronously.
我有一个此类对象的列表，我想在它们上同步执行每个对象。
I call the following:
我称之为：
myTask.RunSynchronously();
When I do such, I am always getting the following error and I dont know why are how I can fix it.
当我这样做时，我总是收到以下错误，我不知道为什么我可以解决它。
System.InvalidOperationException: RunSynchronously may not be called on task that was already started.
System.InvalidOperationException：不能对已启动的任务调用 RunSynchronously。
Anyone got any ideas?
有人有任何想法吗？
采纳答案by Tejs
The problem is that you startedthe task when you call TaskFactory.StartNew- I mean, it's even in the name of the method that you are starting the task. StartNewcreates the task, then calls Starton your behalf. =D
问题是您在调用时启动了任务TaskFactory.StartNew- 我的意思是，它甚至在您启动任务的方法的名称中。StartNew创建任务，然后Start代表您调用。=D
If you want, you can either Waiton the task, like @Peter Ritchie said, or you can create the task manually like so:
如果你愿意，你可以Wait像@Peter Ritchie 所说的那样在任务上，或者你可以像这样手动创建任务：
var task = new Task(() => { ... });
task.RunSynchronously();
回答by Peter Ritchie
It's already started, just use myTask.Wait()
已经开始使用了 myTask.Wait()
