next is not a function with redux@2.0.0

[MichaelHirn]

After I made upgrades on npm as described down below, redux-thunk@0.1.0 threw the error next is not a function on line 12 of the index.js.

Upgrades:

redux: 1.0.1 -> 2.0.0
react-redux: 1.0.1 -> 2.1.0
redux-devtools: 1.1.0 -> 2.1.0

Once I rolled back to 1.x.x, everything worked again as expected.

Update: Ok, just looked at the code. I probably could have dropped the line number.

[gaearon]

My guess is that you didn't apply this change from Redux 2.0 release notes:

If this is not the problem please provide a project reproducing the issue.