Dub selects wrong version

[ag0aep6g via Digitalmars-d-learn]

On 05/21/2016 07:15 AM, Bauss wrote:
> On Saturday, 21 May 2016 at 05:03:14 UTC, ag0aep6g wrote:
>> On 05/21/2016 06:54 AM, Bauss wrote:
>>> When I then compile with dub build I get this error:
>>>
>>> Selected package diamond 0.1.0 does not match the dependency
>>> specification >=0.2.1 <0.3.0 in package diamondtest. Need to "dub
>>> upgrade"?
>>
>> Have you tried "dub upgrade"?
>
> That worked thank you. Didn't know that existed

It's in the error message.