Here is my genesis.json file

{
"config": {
"chainId": 1994,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0
},
"difficulty": "400",
"gasLimit": "2100000",
"alloc": {
"7b684d27167d208c66584ece7f09d8bc8f86ffff": {
"balance": "100000000000000000000000"
},
"ae13d41d66af28380c7af6d825ab557eb271ffff": {
"balance": "120000000000000000000000"
}
}
}

Here is the truffle-config.js

networks
{
development: {
host: "127.0.0.1", // Localhost (default: none)
port: 8545, // Standard Ethereum port (default: none)
network_id: "*", // Any network (default: none)
from: "0x0000000000000000000000000000000000000001",
gas: 200000,
},
};

Here is the 1_initial_migration.js
const Migrations = artifacts.require("Migrations");

module.exports = function(deployer) {
deployer.deploy(Migrations);
};

I have kept the gas in the 1_initial_migration.js file lower than the gasLimit. But still, I find this error on using "truffle migrate":

Compiling your contracts...

===========================

Everything is up to date, there is nothing to compile.

Migrations dry-run (simulation)

===============================

Network name: 'development-fork'
Network id: 1
Block gas limit: 0x1388

1_initial_migration.js

======================

Deploying 'Migrations'

Error: Error: Error: *** Deployment Failed ***

"Migrations" exceeded the block limit (with a gas value you set).

• Block limit: 0x50e7c
• Gas sent: 20000
• Try:
  • Sending less gas.
  • Setting a higher network block limit if you are on a
    private network or test client (like ganache).

at Object.run
(/usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-migrate/index.js:84:1)
at
at process._tickCallback (internal/process/next_tick.js:188:7)
Truffle v5.0.18 (core: 5.0.18)
Node v8.10.0

Please give some solutions.

Thank you