Invalid foreach aggregate

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On Monday, 16 November 2015 at 16:55:29 UTC, Chris wrote:
> On Monday, 16 November 2015 at 16:49:19 UTC, Marc Schütz wrote:
>> On Monday, 16 November 2015 at 16:44:27 UTC, Chris wrote:
>>> Updating my code from 2.067.1 to 2.069.1 (I skipped 2.068, 
>>> because I was too busy).
>>>
>>> I get this error:
>>>
>>> invalid foreach aggregate, define opApply(), range 
>>> primitives, or use .tupleof
>>>
>>> for code like
>>>
>>> foreach (ref it; myArray.doSomething) {}
>>>
>>> Probably not the best idea anyway. What's the best fix for 
>>> this? Thanks.
>>
>> Well, what does `doSomething` return?
>
> It returns a range that modifies individual items in myArray, 
> i.e. it assigns values to fields in each item of the array.

have you...

tried without ref ?
tried by adding a pair of parens after doSomething ?
tried std.algorithm.each or map on doSomething ?
checked the primitives ?
checked that isInputRange!(ReturnType!doSomething) == true?