Can't install OpenZeppelin

[pablogalve]

I have installed Truffle, but I cannot install the OpenZeppelin library.
I run "npm install zeppelin-solidity" in the console but I get this:

After that I created the folder C:Users/Pablo/package.json but now I get this

What can I do?

[gulshanvas]

Hi,
Replace the contents of package.json file with the following :-

{
"name": "zeppelin",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"zeppelin-solidity": "^1.3.0"
}
}

After replacing,run :- npm install zeppelin-solidity
This will pull the zeppelin contracts and other folders under node_modules folder in your current directory.

[prahaladbelavadi]

Hey @eduinvestor
I'd suggest trying the following steps one more time:

• Change Working directory

cd ~/Desktop
mkdir openZeppelinSetup && cd openZeppelinSetup

• Initialize npm

npm init 

• Install both truffle and openzeppelin solidity

npm install --save zeppelin-solidity truffle

Here's some material to follow up post installation.

Cheers!

[KenoLeon]

Still no luck with both suggestion, could it be related with Truffles new version, I am on:

Truffle v4.0.1 (core: 4.0.1)
Solidity v0.4.18 (solc-js)

And my errors:

npm WARN kenoleon@1.0.0 No description
npm WARN kenoleon@1.0.0 No repository field.

Do I need to init Nom if so what are the correct fields ? Thanks

[KenoLeon]

So after playing around I found the package in my local node_modules which I think is the expected behavior,( still have to include them in a test) although the docs state "After that, you’ll get all the library’s contracts in the contracts/zeppelin folder" which I think is a bit misleading since it could refer to the initialized truffle dir.

[KenoLeon]

New errors not finding contracts now... about to chew my arm in desperation !

Just kidding, in the end this is what worked, still not sure this is the intended behavior, and the docs seems to need a bit of updating or maybe even rewriting cause they were not very clear (to me at least) , anyways:

Following this issue worked or me: #409

So to install:

mkdir poneteLasPilasProject  && cd poneteLasPilasProject
npm init
truffle init
npm install zeppelin-solidity
truffle compile

This creates a node_modules inside poneteLasPilasProject with contracts, to access them within Truffle, ( the path in the docs is I believe incorrect):

pragma solidity ^0.4.0;

import "../node_modules/zeppelin-solidity/contracts/ownership/Ownable.sol";

contract masPila {

}

Cheers.

[shrugs]

@KenoLeon you can access them with just import 'zeppelin-solidity/contracts/.....sol'.

In general, it sounds like your node environment is a little wonky. It might be worth looking into nvm or some other node environment manager to isolate project environments (and you generally want to avoid -g unless it's a globally-useful tool like yarn or similar.

The warnings about "no repository field" and "no description" aren't important; those are commenting on the fact that your package.json doesn't specify that information. It's not truffle or open zeppelin related.

---

@eduinvestor did the following comments solve your issue?

[maraoz]

poneteLasPilasProject

❤️

Closing as this seems to be solved.
@eduinvestor if you think the docs are outdated please send a PR to improve them!