Truffle Contract-Debugging – How to Debug a Contract Binary Without Source Code

If you defined a development network in your truffle-config, Ganache will use it for tests:

truffle-config.js:

module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 8545,
      network_id: "*" // Match any network id
    }
  }
};

See here for how to write your configuration: https://truffleframework.com/docs/truffle/reference/configuration

And here for relevant Truffle source code: https://github.com/trufflesuite/truffle/blob/develop/packages/truffle-core/lib/commands/test.js#L58

Otherwise, if you haven't defined a development config Ganache will use port 7545:

https://github.com/trufflesuite/truffle/blob/develop/packages/truffle-core/lib/commands/test.js#L150

I suggest to define a development network config, and use that network name when starting your truffle console (that's different from truffle develop command):

truffle console --network development

See: https://truffleframework.com/docs/truffle/reference/truffle-commands#console

Then you would be connected to the correct Ganache instance for debugging.

Change RPC server to: https://bsc-dataseed2.binance.org in truffle-config.js (instead of dataseed1)... I had the same problem and this resolved it!