Questions tagged [plutus-pioneer-program]
A program to recruit and train developers in Plutus for the Cardano ecosystem. Use this tag for questions regarding the Plutus pioneer program. Keep lecture and homework questions brief and on-topic. Give full answers that clearly explain why they resolve the problem.
83
questions with no upvoted or accepted answers
7
votes
1
answer
287
views
Questioning Plutus API design decision
In Lecture 10 from the Plutus Pioneer Programm there is a replica of the Uniswap Smart Contract built on top of Plutus. It is actually part of the standard Plutus use cases Plutus Uniswap
To have a ...
- 81
6
votes
0
answers
144
views
Cannot Get haskell-language-server running - duplicate symbol "sqlite3_fts3_may_be_corrupt"
hoping someone can help with this
So, I would like to get the haskell-language-server running, in the context of the plutus-pioneers-program, so that in VS Code I can Ctrl+Click and view type ...
4
votes
1
answer
49
views
English Auction rejected translations are not shown
I have made a sample scenario:
Start auction with a deadline of +10 slots
wait for 12 slots
Bid
Wait for 1 slot to allow TX to be processed
The third transaction is not shown - which is ...
3
votes
1
answer
129
views
plutus-playground-server: user error (Error evaluating simulation: JsonDecodingError
I'm following the first lecture in the plutus pioneer program but I cannot set up the local environment. The error happens when running npm start on a nix-shell after initializing the playground ...
- 91
2
votes
0
answers
29
views
npm run start in plutus-playground-client creating npm errors
edit...I was able to get the plutus-playground-client working by using --force. How do I fix the monaco-editor dependency errors so I don't need to force it? Or do I even need to worry about it?
I am ...
- 121
2
votes
0
answers
76
views
Issues running Chain-index on WSL2 - fully syncing but not running the webserver
I've run into an issue with the chain-index while trying to run a PAB testnet environment. The index will start up, sync to 100%, update to new blocks, but the webserver will never start. In fact, the ...
- 21
2
votes
0
answers
27
views
About Fees in the Plutus Playground
I had been reviewing sample codes that can be run in the Plutus Playground, particularly the Vesting.hs code in Cohort #3 Week #3 of PPP. So while trying several cases in the simulation, I sometimes ...
- 106
2
votes
0
answers
115
views
Optimising validators with `BuiltinData -> BuiltinData -> BuiltinData -> ()` and building tx with cardano-cli
In one of your previous classes you said that some teams are optimising their contracts with this type of validator BuiltinData -> BuiltinData -> BuiltinData -> () and I'll refer to those ...
- 160
2
votes
1
answer
303
views
error: suspicious ownership or permission with nix-shell command on plutus-apps repository
Using the nix-shell command in a docker container on GitHub codespaces results in the following error:
$ nix-shell --show-trace
trace: To materialize project.plan-nix for cabal-install entirely, pass ...
- 21
2
votes
2
answers
150
views
Error compiling Week01
I'm on commit: 41149926c108c71831cfe8d244c83b0ee4bf5c8a of the plutus-apps repo (I've also tried 7f53f18dfc788bf6aa929f47d840efa1247e11fd, doesn't seem to make a difference).
When running cabal build ...
- 251
2
votes
1
answer
137
views
VSCode/Docker Setup Starter Pack problems
I'm trying to implement the 4th option of the starter pack setup using docker/vscode on my mac M1. I followed the instructions carefully from the github repository, but I'm getting errors. I'm new ...
2
votes
0
answers
31
views
How to reuse data when updating Token using StateMachine
I'm currently creating a social network-like Dapp on plutus, and I've come across something I don't understand.
My Dapp, for example, is NFT(for own identity)->RFT(for sell own content)->NFT(for ...
user4999
2
votes
1
answer
159
views
"bash: plutus-pab-generate-purs: command not found" issue when run plutus-playground on Ubuntu
I've followed guide for running plutus-playground .
But when I npm run start on plutus-playground-client, it says 'bash: plutus-pab-generate-purs: command not found'.
Please check screenshot on ...
- 21
1
vote
1
answer
114
views
User error: Caused by: [ (builtin unConstrData) (con data #187b) ] while trying to unlock tokens from contract
hi I am getting this error while trying to unlock tokens from my treasury contract it is already topp up with tokens when trying to unlock with the access token doesn't know the exact reason behind ...
- 11
1
vote
2
answers
80
views
Error cabal build: "Failed to build lzma-0.0.0.3" even in nix-shell and also tried "sudo-apt install liblzma-dev"
I'm trying to run the command "cabal build" the Week02 code of plutus-pioneer-program but it has this error and I have tried everything but the same error keeps appear:
Failed to build lzma-...
- 21
1
vote
0
answers
64
views
TxOutRefNotFound when using Plutus.Contract.Wallet (getUnspentOutput)
I am trying to get a UTxO of the current wallet, use it to mint a token via the OneShotCurrency type, but I keep getting the following Error:
(TxOutRefNotFound (TxOutRef {txOutRefId = ...
- 1,162
1
vote
0
answers
49
views
setting up the PAB - could not start the plutus-chain-index
I'm trying to follow the lesson 6 of iteration 3 of the plutus-pioneer-program
when trying to start che chain index trough the command (fromn the plutus-apps repository)
plutus-chain-index --config ./...
- 992
1
vote
2
answers
70
views
StateMachines on Testnet : How to step a client?
I want to run a statemachine on testnet.
The SM runs in the emulator, and I can initialize on testnet,
but if I try to make a new client it throws an error.
The error comes from transition failure, ...
- 403
1
vote
0
answers
81
views
Plutus Pioneer Cohort 3, Mac M1 cabal build error: Failed to build small-steps-test-0.1.0.0. , symbol not found in flat namespace '_sodium_free'
I'm using MacOS Monterey with M1 chip, and trying to build plutus-app using Nix
Entering $ nix-shell using the specified tag from week01 is working fine, hence I can enter into the shell. The problem ...
1
vote
0
answers
52
views
How Do I Deploy a Plutus Contract From the Browser?
I want the user to go to my website and enter some details into a form. This data should then be converted into an input for my parameterised smart contract (written in Plutus).
I can do the website ...
- 972
1
vote
0
answers
60
views
How to use Endpoints and Schema
I doing the PPP but Lars does not cover Endpoints or schema declarations in sufficient detail. I imagine that this is a problem that Plutus devs must overcome, but I cannot find suitable documentation ...
- 972
1
vote
0
answers
75
views
Exception from validator is not shown when using cardano-serialization-lib
I have this simple validator:
newtype BreedConfig = BreedConfig
{ feeAddr :: PubKeyHash
} deriving (Generic, ToJSON, FromJSON)
PlutusTx.makeIsDataIndexed ''BreedConfig [('BreedConfig, 0)]
...
1
vote
0
answers
98
views
Calculation cpu and memory exUnits on transaction submit is different then on transaction build?
I am trying to build a non-optimized script and during the cardano-cli build transaction I got an error:
Command failed: transaction build Error: The following scripts have execution failures:
the ...
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1
vote
0
answers
89
views
How to add 'ToSchema' to Address (in Playground)?
I'm doing homework2 of week05 (cohort3). My contract runs fine in the repl, but when I try it in the playground, I'm running into an issue. It fails on this line:
mkSchemaDefinitions ''NFTSchema
I ...
- 172
1
vote
0
answers
302
views
How to Deploy / Write NFT Minting Plutus Script?
I am following through the third cohort PPP. With a week of course break, I wish to consolidate my understanding through practice. One exercise is to go through the deployment process of an NFT:
...
1
vote
1
answer
69
views
Where is Week04.Monad?
Doing Week 04 of cohort 3 Plutus Pioneers here.
In the repl inside the nix shell, inside ~/plutus/plutus-pioneer-program/code/week04
Watching PPP 030402 at 34:54 to about 39:59.
When I do
:l src/...
- 349
1
vote
1
answer
67
views
Smart contract configuration
Is it possible to write smart contract validator that would check:
if UTXO that contains service price information was included so only script can read what is actual price of the service.
UTXO with ...
1
vote
0
answers
25
views
cabal repl outputs a lot of changing git HEADs on plutus-pioneer-program
This is a question regarding the plutus-pioneer-program. I want to load the modules of a given week into the ghci shell. The first time I run cabal repl it takes quite a long time to download things ...
- 111
1
vote
1
answer
75
views
cardano-cli not showing utxo but Testnet Blockchain Explorer does
I have requested funds via Faucet, twice in fact because the first one I thought the request didn't go through but when I run:
cardano-cli query utxo --address $(cat 01.addr) --testnet-magic ...
- 198
1
vote
0
answers
81
views
Applycode to untyped validator, template Haskell
I am trying to learn the basics of the PlutusTx module. In this module is a function applyCode which maps the signatures CompiledCodeIn uni fun (a -> b) -> CompiledCodeIn uni fun a -> ...
- 1,862
1
vote
0
answers
50
views
How can I configure Ale so it finds Plutus libraries?
I'm using nvim with Ale, no particular config other than:
Plug 'w0rp/ale'
let g:ale_sign_error = '●'
let g:ale_sign_warning = '●'
It looks like works out of the box for Haskell, but cannot find ...
- 111
1
vote
0
answers
113
views
week 02 - Pioneer cohort 3: Failed to build lzma-0.0.0.3
I am on week 02 of the 3rd Pioneer Cohort.
I am working on a Mac Mojave; when I get to running
cabal repl
I get this error:
Failed to build lzma-0.0.0.3. The failure occurred during the configure step....
- 121
1
vote
0
answers
27
views
Problem with Lesson 5 code on newer version
I am trying to get signed token up and running on the Plutus playground from lesson 5 and I'm running into an issue with I believe is a depreciated variable of PubKeyHash does any body know the ...
- 472
1
vote
0
answers
26
views
Does the plutus playground make all defined function inlinable by defauld?
I noticed that not in all of the examples on the playground the {-# INLINABLE myProgram #-} flag is used. Does the playground natively accept every function as template haskell? Why do some examples ...
- 1,862
1
vote
1
answer
59
views
Plutus Cohort 3: slot count why 11 and not 14
I ran the auction exactly as shown. The slot count at the closing (after the additional wait) comes up to 14, not 11, as shown in the video. (if I add all the waits, the result is, indeed, 14). If the ...
- 121
1
vote
0
answers
31
views
Auction contract example with metadata
In the example of NFT Auction, I am thinking about potential scenarios where certain JSON metadata an NFT was minted with, happens to be required in some arbitrary logic within auction process (artist ...
- 11
1
vote
1
answer
132
views
nix-shell : getting error "Index state found was 2021-10-20T00:00:00Z and no `index-sha256` was provided."
I'm having issues starting nix-shell from the plutus-apps directory.
I have followed the steps provided here: https://docs.plutus-community.com/docs/setup/WindowsCohort2.html.
Below is the full output ...
- 11
1
vote
2
answers
110
views
git checkout 41149926c108c71831cfe8d244c83b0ee4bf5c8a for English Auction doesn't work
According to cabal.project script for the English Auction, the git branch for this plutus script is:
source-repository-package
type: git
location: https://github.com/input-output-hk/plutus-...
- 198
1
vote
4
answers
572
views
WSL2 install - plutus fails to build, unable to open db file in 'nix/var/nix/db/db.sqlite'
I'm attempting to finish the setup for plutus pioneers cohort3 on wsl2 (Windows 10) with Ubunutu 20.04. When I run the command:
nix --extra-experimental-features nix-command build -f default.nix ...
1
vote
2
answers
209
views
nix-shell command causes error "invalid character in Base64 string"
I'm following the Plutus Env: Setup Starter Pack guideline to run a Plutus Playground Local Instance. At step 4, when running the command nix-shell, I got the error message error: invalid character in ...
- 11
1
vote
1
answer
198
views
Playground client can't connect to playground server (all localhost)
I am on an Intel based iMac Pro running Big Sur (11.6.1)
I have followed every variant of the local playground setup I can find (all are some version of page 2 in this document https://docs.google.com/...
1
vote
1
answer
121
views
Building PAB error: attribute 'plutus-pab' in selection path 'plutus-pab' not found
I am following https://docs.plutus-community.com/docs/setup/MacOS.html
I know the plutus-apps repo is newer than those docs and have downloaded it but it seems I can't build plutus-pab.
When I run
$ ...
- 167
1
vote
1
answer
210
views
cabal fails to build plutus-core
When installing plutus starter on a Mac M1 running macOS 12.1 Monterey, the command cabal build logs the following error, even after updating cabal:
Failed to build plutus-core-0.1.0.0.
Build log (
/...
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1
vote
1
answer
83
views
WSL2 Plutus env setup - docker load error: attribute 'devcontainer' in selection path
docker load < $(nix-build default.nix -A devcontainer)
error: attribute 'devcontainer' in selection path 'devcontainer' not found
-bash: $(nix-build default.nix -A devcontainer): ambiguous
redirect
...
- 21
1
vote
1
answer
120
views
VSCode + Docker setup problems on Windows
I'm trying to setup the local enviroment by the VSCode + Docker way, because i find it easier for a newbie like me.
I open the cloned repository on VSCode but when y click on the button to reopen it ...
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1
vote
0
answers
37
views
Is there an established pathway yet for someone with a purely mathematical background to become a fully equipped Cardano developer? If so, what is it?
Title asks my question. I have a mathematics degree (undergrad) and have dipped a toe in the water of software development in Python, but have no clue where the optimal place to start to become an ...
- 11
1
vote
0
answers
71
views
Plutus Pioneer Program Week01 : Installing plutus - Unable to start server if syncing plutus with plutus-pioneer-program version
In the plutus-pioneer-program/code/week01 folder, I got the tag as tag: ea0ca4e9f9821a9dbfc5255fa0f42b6f2b3887c4
The git log tag for plutus was 9879b31579d0deb863f3cdf27f93419deec3b4bb
So I used git ...
- 11
0
votes
0
answers
15
views
How to analyze the Plutus budget usage?
When I run my minting policy script I get the error
Command failed: transaction build Error: The following scripts have execution failures:
the script for policyId 0 (in the order of the PolicyIds) ...
- 35
0
votes
1
answer
53
views
Lucid Vesting demo, signing from two different accounts but same seed
I'm working through the beneficiary vesting example where we have two beneficiaries: beneficiary 2 (giver who can reclaim funds after deadline), and beneficiary 1 (must claim gift before deadline).
In ...
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0
votes
2
answers
70
views
playground-common package giving 'Failed to build scrypt-0.5.0' error
I'm trying to run my own little smart contract in the plutus-pioneer-program [fourth iteration] docker container and I'm having some problems. I've just added an extra folder alongside the other weeks....
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