Error while running CSOM code : Error: Cannot find an overload for "WorkflowServicesManager"...

Audi86 

I'm not a SharePoint guy but the error is straightforward and generically applies to any and everything.

This error comes up when a constructor or method is called where there is no match between the constructor/method definition(s) and the parameters passed in.

Because you've provided no code to inspect, I'll demonstrate with a bogus example that uses the common [Int32] class.

Here, we can see there's four versions of the Parse() method defined, but none of those definitions match the call made in the second command, resulting in the generic "can't find overload" error.

So, you're issue is not that WorkflowServicesManager has been deprecated (which, incidentally, isn't the same as having been removed; it just means it's no longer being actively developed) but that your call to it does not match any known definition.

My suggestion is that you check your parameter types, where I'd expect you have either or both of:

1. The wrong number of parameters;
2. One or more parameters is of the wrong type.

Cheers,

Lain