Not able to get rid of error from solc-js “AssertionError [ERR_ASSERTION]: Invalid callback specified.”

Question

const path=require('path');
const fs=require('fs');
const solc=require('solc');
const InboxPath=path.resolve(__dirname,'contracts','Inbox.sol');
const source=fs.readFileSync(InboxPath,'utf8');
solc.compile(source,1);

Here is my error:

kowsik@kowsik:~/Desktop/etherium_project$ node compile.js
assert.js:43
  throw new errors.AssertionError(obj);
  ^

AssertionError [ERR_ASSERTION]: Invalid callback specified.
    at wrapCallback (/home/kowsik/Desktop/etherium_project/node_modules/solc/wrapper.js:16:5)
    at runWithReadCallback (/home/kowsik/Desktop/etherium_project/node_modules/solc/wrapper.js:42:26)
    at compileStandard (/home/kowsik/Desktop/etherium_project/node_modules/solc/wrapper.js:83:14)
    at Object.compileStandardWrapper (/home/kowsik/Desktop/etherium_project/node_modules/solc/wrapper.js:90:14)
    at Object.<anonymous> (/home/kowsik/Desktop/etherium_project/compile.js:7:6)
    at Module._compile (module.js:653:30)
    at Object.Module._extensions..js (module.js:664:10)
    at Module.load (module.js:566:32)
    at tryModuleLoad (module.js:506:12)
    at Function.Module._load (module.js:498:3)

Answer 1

Use an older solc version for example "solc": "^0.4.25"