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Questions tagged [tutorials]

Questions about Substrate tutorials.

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3 votes
3 answers
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Substrate Tutorials - No more Nick's Pallet?

Im running through the Substrate Tutorials and just started the Build Application Logic tutorial series. This series starts with implementing pallet_nicks which appears to have been discarded with ...
CODY's user avatar
  • 43
2 votes
0 answers
46 views

Cant produce new blocks with custom ChainSpec file

I was using substrate version of 4.0.0-dev-41ad4a6c9d7 and following the Add Trusted Nodes for making a custom account as a Authorites account here, I can't able to produce new blocks, I don't know ...
Mojo's user avatar
  • 95
3 votes
1 answer
182 views

How to migrate from Kusama to Polkadot?

I want to migrate my production parachain from Kusama or Polkadot. How can I achieve this?
sea212's user avatar
  • 539
1 vote
1 answer
269 views

"Cannot convert undefined or null to object" using polkadot.js in substrate tutorials

I've been following through the pallets tutorial: https://docs.substrate.io/tutorials/work-with-pallets/use-macros-in-a-custom-pallet/ and got stuck at the last step of interacting with the blockchain....
S. Iakovlev's user avatar
1 vote
1 answer
323 views

duplicate lang item in crate `sp_io` (which `frame_support` depends on): `panic_impl`

I am following the Substrate tutorial on adding pallets. However, when I add pallet-nicks to the Cargo.toml located in the runtime folder and then add the pallets-nicks implementation to the lib.rs ...
chomprrr's user avatar
  • 113
1 vote
1 answer
70 views

in the second tutorial i didn't had to specify a key for bob, how did it work?

In the second tutorial where we simulate a network with two nodes, we add Bob however we use --bootnodes option and we didn't specify the keys for bob. what does that option do specifically, i assume ...
dadzerlaze's user avatar
  • 1,083
0 votes
1 answer
70 views

Tutorial - Simulate a network: I've started 4 nodes (Alice/Bob/Charlie/Eve), but not all of the nodes show '3 peers'

https://docs.substrate.io/tutorials/get-started/simulate-network/ While working on this tutorial, I decided to go beyond the Alice and Bob nodes and also started Charlie and Eve nodes. While adding ...
kenta_desu's user avatar
5 votes
0 answers
54 views

Error on Launching the First Node Following the Tutorial

I was following the substrate get started tutorial. In the "Trusted Network - Add trusted nodes", I was failed to start the first node step. (I was using the virtual machine and the os is ...
Tony Ma's user avatar
  • 51
1 vote
1 answer
77 views

Not able to build local blockchain as per documenation tutorial

Getting the following error and not able to build my first local blockchain using the documentation tutorial: 3 warnings generated. /Library/Developer/CommandLineTools/usr/bin/ranlib: file: ...
Mike Kooner's user avatar
1 vote
1 answer
46 views

Simulate Network Tutorial [closed]

So from the new tutorial website: https://docs.substrate.io/tutorials/get-started/trusted-network/#generate-local-keys-using-the-node-template Few scrolls down there is a line: ./target/release/node-...
Dejan Zivanov's user avatar
2 votes
4 answers
402 views

Cannot produce and finalize blocks with 2 node peer

I want to connect 2 nodes via custom chain specification via Internet IP public https://docs.substrate.io/tutorials/get-started/trusted-network/ I. STEP 1: Create Aura and grandpa --- NODE 01---- ...
oscar's user avatar
  • 33
0 votes
1 answer
110 views

ink! tutorial: substrate-contracts-node build fails

I am making my way through the ink! "First Contract" tutorial: https://docs.substrate.io/tutorials/v3/ink-workshop/pt1/ When trying to download the precompiled node: cargo install contracts-...
Keegan's user avatar
  • 33
1 vote
1 answer
235 views

Keys cannot be added to keystore

Problem Keys cannot be added to keystore. Situation description To launch the private network, the boot node was first started and succeeded.[❶] The next time I tried to add a keys to the keystore I ...
ooohiroyukiooo's user avatar
3 votes
1 answer
63 views

Is there any wargame-like for Substrate?

In my opinion, the best way to learn things is by practicing. The Substrate's tutorial (and docs) are already great on that matter. But I have to say that I miss something around security there. I ...
Artur Gontijo's user avatar