How can I increase the gas limit in this case? The error message is "n: Exceeds block gas limit" or "base fee exceeds gas limit".
I think there is some kind of api I need to set the block gas limit here.
Are my contracts too large? Should I test each contract one by one instead? Please advise. Thank you.
The error message
"n: Exceeds block gas limit"
means your transaction has declared a gas value greater that the maximum allowed in the network. A client will reject such transaction.
With ganache-cli you can launch with a larger amount of gas available with the -l parameter:
ganache-cli -l 8000000 Will launch ganache with a block gas limit of 8M.
From the readme documentation it has a mode where you pass extra options in a parameter when you launch ganache. There you can set gasLimit.
const ganache = require("ganache-cli"); const options = { gasLimit: 8000000 }; const server = ganache.server(options); server.listen(port, (err, blockchain) => { /* */ }); 
gasLimit from there. Thanks to Ismael's solution:
const ganache = require('ganache-cli'); const Web3 = require('web3'); const options = { gasLimit: 8000000 }; const provider = ganache.provider(options); // quote from doc "Both .provider() and .server() take a single object // which allows you to specify behavior of ganache-cli" // https://github.com/trufflesuite/ganache-cli#using-ganache-cli const web3 = new Web3(provider);