Build config did not create any jobs

Hi,

my travis build is no longer triggered anymore. My travis file is here: https://github.com/JuliaEnergy/PowerDynamics.jl/blob/master/.travis.yml
It shows up under “Requests” in TravisCI with the message: “Build config did not create any jobs” but no build is triggered. The last change i did which might have caused this was reducing the Julia version for building to the latest one only. I can’t see why this should cause the above error.
Can anybody help me finding the cause?

Thanks in advance!

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