Not able to deploy contract in testnet(Ropseten)

Question

I am trying to deploy a crowdsale contract which is build upon openzeppelin while deploying it on geth --dev and ganache it gets deployed perfectly but whenever I am trying to deploy the contract on the testnet I am getting following error.

1_deploy.js
===========
Deploying Token Crowdsale:
        Rate                    : 1
        Wallet                  : 0xDc6234d567eBA03B465f519596E679A8d3959935
        Opening Time            : 1539087204
        Closing Time            : 1539238404
        Cap                     : 4000000000000000
        Individual Min Cap      : 1000
        Goal                    : 800000000000000
        Token Address           : 0x3FEc09Fab0dbb7EdaDbD4a4c06908a3Eb846308f
        Token Wallet            : 0xDc6234d567eBA03B465f519596E679A8d3959935

   Deploying 'TokenCrowdsale'
   --------------------------
   > transaction hash:    0xb2f48b6418021476827c8aeeb51762927c319dc74cd10ffaaa8482f06e3dae5c
Error:  *** Deployment Failed ***

"TokenCrowdsale" -- The contract code couldn't be stored, please check your gas limit...

    at /home/paradox/.config/yarn/global/node_modules/truffle/build/webpack:/packages/truffle-deployer/src/deployment.js:361:1
    at process._tickCallback (internal/process/next_tick.js:68:7)

I am passing 8000000 as the gas amount, any leads would be appreciated.

SourceCode

Answer 1

Ropsten has lower gas limit - around 4.7M and you can't set it yourself, since it's a public testnet. Gas limit value that you put in your settings can't override the blockchain's gas limit. You can try Rinkeby - it has 7693375, check the number at the top of the stats page: https://www.rinkeby.io/#stats

Check this related question: Is there a reason Ropsten doesn't have the same block gas limit as mainnet?

I tried running your deploy with Ganache v6.1.8, default gas limit 6721975, but it didn't even deploy the token:

truffle migrate --reset --network development
Using network 'development'.

Running migration: 1_deploy.js
Deploying Token:
        Name            : Sportist
        Symbol          : S
        Decimals        : 6
        Cap             : 10000000000000000
  Deploying Token...
  ... undefined
Error encountered, bailing. Network state unknown. Review successful transactions manually.
Error: Exceeds block gas limit

You don't have to inherit every conract in OpenZeppelin's collection, your crowdsale contract is clearly too big:

contract TokenCrowdsale is AllowanceCrowdsale, RefundableCrowdsale, IndividuallyCappedCrowdsale, StagedCrowdsale

Nevertheless, when I put the default value, 6700000, which is, by no coinscidence, less than Ganache's block gas limit, both transactions passed.

Try putting a value less than your target blockchain's limit.