ParserError: Expected identifier, got 'LParen' for emit and constructor parameters

• I’ve asked for help in the Truffle Gitter before filing this issue.

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Issue

I am working on updating my contracts to solidity version 0.4.23. But I got the very annoying error ParserError: Expected identifier, got 'LParen'. It comes with both constructor and emit keyword. When I switch my contracts to remix then it works fine without any error but in truffle, I am getting that wired error.

Steps to Reproduce

Install the latest version of truffle@4.1.7.
Change the pragma solidity ^0.4.18 to ^0.4.23.
Change the constructor function name with keyword constructor.

Expected Behavior

It should work.

Actual Results

Environment

• Operating System: MacOS Sierra
• Ethereum client: Ganache
• Truffle version (4.1.7):
• node version (9.11.1):
• npm version (5.6.0):

[cgewecke]

@satyamakgec Could you see if this fixes the global installation for you?

npm uninstall -g truffle
npm uninstall -g solc

npm install -g truffle

[mryellow]

Now this is interesting, shows a different version for solc-js. I guess my linter (which is showing this error) is using the version before and that standalone package isn’t updated.

truffle version
Truffle v4.1.8 (core: 4.1.8)
Solidity v0.4.23 (solc-js)

Reinstalling solc separately it mentions 0.4.23 though solc --version is still reporting 0.4.21.

npm install -g solc
/usr/local/bin/solcjs -> /usr/local/lib/node_modules/solc/solcjs
+ solc@0.4.23
added 66 packages from 31 contributors in 6.488s
solc --version
solc, the solidity compiler commandline interface
Version: 0.4.21-develop.2018.2.28+commit.9e3da89a.Linux.g++
whereis solc
solc: /usr/local/bin/solc

Ahh I need to rebuild solc from source.