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Questions tagged [tutorials]

Used to describe learning materials and/or good references. An example of a solidity tutorial is cryptozombies.

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1answer
220 views

No web3.min.js while download Zip file from Github

I am following a youtube tutorial to make a simple dApp. In this tutorial he is telling to get Web3 from GitHub. I downloaded the Zip of Web3 from the GitHub and i get following folders and file after ...
1
vote
1answer
360 views

Ethereum Token Creation & Crowdsale Example

My goal is to create a token and sell it via the crowdsale contract. I used the examples: https://www.ethereum.org/token The code below is the exact same as on the ethereum homepage besides the ...
2
votes
0answers
28 views

Data Scientist wanting to simulate a DAO on private network, unsure of where to begin

My apologies for such a broad question, I couldn't find anything remotely similar to my case and I've got lots of questions - I'll try to narrow the scope down here. Premise: I'm a data science ...
0
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1answer
335 views

Infura tutorial no longer accurate, how to get the initial curl HTTPS POST to work?

Following the guide at https://blog.infura.io/getting-started-with-infura-28e41844cc89, step 2 after registering is to send a HTTPS POST using curl. The command is curl -X POST --data '{"jsonrpc":"2....
0
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1answer
83 views

Ethereum crowdsale tutorial code doesn't work on remix

I took the crowdsale code from the tutorial, copied the whole contract code and pasted it to remix (with Rinkeby testnet), and I'm getting straight an error: browser/contract.sol:52:25: ParserError: ...
2
votes
1answer
164 views

Reference book on Ethereum?

When we search "Ethereum" keyword in Google or Amazom, we find a lot of books on this topic. I bought some kindle books, however they mostly talk about basic topics that are usually repeated in most ...
0
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0answers
401 views

Minimal working example of ethereum dapp

There are examples about how to develep dapp based on ethereum. They work. However, they are not minimal, in the sense that readers need to learned things that may be left without. For example, in ...
4
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3answers
791 views

Pegging a private chain to Ethereum public blockchain

Are there any good tutorials or resources for sidechain development or are these just specialized private chain pegged to the Ethereum network?
0
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1answer
273 views

Created Token, now can't see my tokens in my account

I followed the basic tutorial to create a new Token, it all seems to have worked correctly, yet I can't see my new tokens in my account (Ethereum Wallet on mac v0.9.3). Also tried via MyEtherWaller....
0
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1answer
241 views

Truffle “Replacing” durring migration

what does "Replacing" mean in migration? a simple test contract C.sol: pragma solidity ^0.4.17; contract C{ uint public ConstructorUint; function C(uint SetConstructorUint)public{ ...
0
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1answer
118 views

Started my first Dapp, I have a trouble of Greeter tutorial

I started my first Dapp through this tutorial (“https://ethereum.org/greeter#the-solc-compiler”). But, there is a step (following image show ) I can’t understand, don't know what should I do: I ...
0
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1answer
2k views

Where can I start learning to develop Decenteralized apps? [duplicate]

I have been trying to understand this development process of making DaPPs using ehtereum from various sources, some of them are outdated because this technology is evolving pretty fast as of now. ...
0
votes
1answer
53 views

minimumBet Appears to be Returning Incorrect Amount

I'm following this tutorial, which seems like a great intro to solidity contracts, but I've got an issue where I don't see the same results as on the post. When calling minimumBet from remix.solidity,...
0
votes
1answer
45 views

ethereum.org/crowdsale ALSO FOR USER TOKENS?

The information of the webpage says something about crowdsale/equity token. Since the token I want to distribute is a user/utility token; is this a good source to learn the code? If not, what would ...
2
votes
3answers
603 views

What's the correct way to reference elements in an array?

I'm going through the Ethereum Pet Shop Truffle tutorial and found this in the test section: address adopter = adoption.adopters(8); A previous section had used adopters[petId] = msg.sender; Why ...
0
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1answer
278 views

Recent development tutorials for DApps?

Most of tutorials I found in the net were either too old or using old frameworks and development tools. I am talking specifically for building end to end DApps. Would you recommend some recent ...
1
vote
0answers
797 views

How to fix 'Waiting for roots to load…' in react-devtools for a dApp?

I am building a Parity UI dApp from the Skeleton dApp at https://github.com/paritytech/skeleton and I want to debug it with Facebook's react-devtools Since Parity renders the dApp in an iframe, I ...
2
votes
2answers
3k views

Is there a simple step - by - step guide to run Mist in light mode?

I searched on Reddit, Youtube... but I keep doing something wrong I guess. I downloaded the last Mist, and I want the bundled Geth node to be a light one, and to remain a light client every time I ...
2
votes
0answers
320 views

Parity getting started tutorial not working

I'm trying to do the getting started tutorial from Parity but it isn't working. When running the following command: parity --chain=kovan i get the following error message Cannot read manifest file ...
-1
votes
1answer
2k views

Tutorial for ethereum wallet creation in android [duplicate]

I am very new to ethereum and would like to learn it. Is there some tutorial available which lets me create an ethereum wallet for android ?
-1
votes
1answer
113 views

Technical introduction to ethereum [closed]

Where can I find a technical explanation of how ethereum works for someone who knows a lot about crypto and bitcoin? Lecture or text would be fine.
8
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3answers
10k views

Ethereum Tutorial for Beginners [closed]

I want to learn how to write and use Ethereum smart contracts. I have geth installed on my computer. I have experience with SQL and write some JavaScript and HTML. Other than that I know nothing about ...
10
votes
1answer
434 views

What is meant in this tutorial when it says that using throw will “consume all provided gas”?

When reading the solidity documentation (http://solidity.readthedocs.org/en/latest/solidity-by-example.html#voting), I came across this: function giveRightToVote(address voter) { if (msg.sender !=...