I'm trying to use solc with no success.
I download solc with npm install solc but when I run solc --version the console output is:
command not found.
If I list packages npm list I'm able to see [email protected].
What's wrong?
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Related: ethereum.stackexchange.com/questions/5840– galahadCommented Jun 20, 2016 at 19:16
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10 Answers
You should add solc to PATH. Type which solc to get the location where the solidity compiler is installed and add this to PATH. If you just want to check the version, navigate to the location where solidity is installed and then type in the command solc --version.
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nothing pippo-MacBook-Pro:~ pippo$ which solc pippo-MacBook-Pro:~ pippo$– underdogCommented Jun 20, 2016 at 19:45
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Now it seems to be ok. I download cpp-ethereum end in geth console set for admin.setSolc() the output of which solc. So, solc always require cpp-ethereum, is not stand-alone?– underdogCommented Jun 20, 2016 at 20:00
If you have installed through npm install -g solc
Here's how you use it. solcjs --version
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doesn't say what's wrong, which is that without -g the command is not installed in the user's path. The other solution is for the user to update their path. This is really an npm issue...– Paul SCommented Sep 20, 2016 at 18:22
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Kind of annoying... Can I have my 15 minutes back? Surely you install
solcand then runsolcjs... Please. Commented Nov 25, 2017 at 11:13
install solc compiler using
npm install -g solc
it install compiler in global scope and use from any location.
To check version of installed compiler
solcjs --version
is return something like "0.4.23+commit.124ca40d.Emscripten.clang"
more details are available here.
npm install solc currently does not install a globally available compiler. The solc npm package are just Javascript bindings to use in a Javascript module.
After struggling with this myself for some time, there currently seems to be no convenient way to install a standalone Solidity compiler, at least on Mac OS X.
Expanding on @graup, I've reinstalled solc from my contracts directory of each new contract project, which has worked for me:
cd contracts
npm install solc
npm install ethereumjs-testrpc [email protected]
node
Web3 = require('web3')
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
code = fs.readFileSync('MyContrat.sol').toString()
solc = require('solc')
compileCode = solc.compile(code)
npm i solc@version
By using this command you can do the installation of your required version solidity.
Just do:
solcjs --version
And even when compiling do solcjs.
Had similar issue after installing globally, but npx solc --version fetched the version
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This does not really answer the question. If you have a different question, you can ask it by clicking Ask Question. To get notified when this question gets new answers, you can follow this question. Once you have enough reputation, you can also add a bounty to draw more attention to this question. - From Review Commented Dec 29, 2022 at 10:31
Here is how you can add to path if you have installed via python3 using pip3!
export PATH=$PATH:/Users/nolanjacobson/Library/Python/3.8/bin
If you are using a Mac, this is the best solution: https://stackoverflow.com/a/73625172/13327102
After that, you can use solc-select to change between solc versions.
Keep in mind that you will need to do this to fix the certificate issues: https://github.com/crytic/solc-select/issues/114#issuecomment-1212475592
And then don't forget to add --always-install when you run:
solc-select use 0.8.24 --always-install
answered Aug 9 at 4:18
