Truffle Dapp only works when I first use `truffle migrate --reset`

Question

When I first load my Dapp with testrpc the functionality doesn't work until I use the command truffle migrate --reset

Any ideas why?

When you start testrpc, it's a whole new blockchain (simulation) so previous migrations are absent. Truffle isn't aware of that, so --reset is part of the routine. One possible reason for it. — Rob Hitchens, Feb 04 '17 at 22:01

score 8 · Accepted Answer · answered May 25 '18 at 13:17

This is because truffle remembers previous migrations you made but you are on a new test network. You can see registered contract addresses by running truffle networks.

You can delete these informations by running truffle networks --clean before truffle migrate.

Truffle Dapp only works when I first use `truffle migrate --reset`

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