14
votes
Accepted
Plutus Pioneer Program - Lecture #1 Problem with cabal build
It looks like your cabal version is too old.
You can make sure you have the right one if you first start a nix-shell at the top-level directory of the plutus-repository, then cd to the code folder of ...
- 1,816
6
votes
plutus starter course
I asked Lars the same question in the Q&A, his answer was that your best bet is to copy one of the Plutus Pioneer Program lectures (preferably the last one), remove the unnecessary modules and ...
- 978
6
votes
Accepted
Cardano DB Sync as Service (running on background) on Ubuntu
Why are you running cardano-db-sync with cabal? You should just run cardano-db-sync or cardano-db-sync-extended.
And another question, more important: why are you running the service as root? This is ...
- 1,220
5
votes
How to get intellisense/auto suggestion working for Plutus in VSCode?
Simply install the Haskell extension from inside Visual Studio Code. You'll get there by pressing Ctrl+Shift+X and searching for Haskell.
Note that the extension requires a ghc installation (=<8.10....
- 361
5
votes
How to properly start a new Plutus project, from scratch
A well formatted question deserves a well formatted answer! I will go into some depths, but also keep some things at a “magical” level. This is a long read so take your time!
Before we start, it is ...
- 1,862
4
votes
Plutus Pioneer Program - Lecture #1- Cabal Build error
I had a similar issue and solved it by running nix-shell in the plutus library, then navigating to the plutus-pioneer/code/week01 and running cabal update. I hope this helps!
- 1,174
4
votes
How can I set up my dev environment faster after pulling the pioneer code repos for each week
My weekly setup steps are similar to yours. But there's a few steps you do that I skip and, so far, haven't had any issues.
I've never ran any of these:
nix-build -A plutus-playground.client
nix-build ...
- 520
4
votes
Accepted
Incorrect Pub Key from Wallet Emulator
mockWalletPaymentPubKey gives you the public key for a wallet.
For Vesting.hs, you need to use the public key hash.
Try mockWalletPaymentPubKeyHash $ knownWallet 1 instead.
- 520
4
votes
How to properly start a new Plutus project, from scratch
Since this question was posted Plutus-alternatives have been developed by the community that allow doing DApp development in JavaScript only. One such library is https://github.com/hyperion-bt/Helios
...
3
votes
Accepted
What is the difference between "cabal build" and "cabal repl"?
In our context of smart contracts, cabal build builds the executables needed for doing cabal run, which we use to build the Plutus validator.
cabal repl, in the other hand loads all the modules that ...
- 56
3
votes
Accepted
missing node.socket
At this stage, it is normal that your node.socket does not yet exist because your launch has not passed the step IPSubscriptionTarget {ispIps = [], ispValency = 0}. It usually happens because your ...
- 589
3
votes
Accepted
What is a library stanza?
I recommend you this article:
https://vrom911.github.io/blog/common-stanzas
Take into account that stanzas is a cabal thing (not Haskell, not Plutus). However Plutus projects can be created using ...
- 1,304
3
votes
Accepted
Week 4 issue with Cabal build: Not in scope: type constructor or class 'JWT.EncodeSigner'
Be sure to do a git pull for both 'plutus-master' and 'plutus-pioneer-program'.
Then set the right git-checkout tag (of the week's cabal project file)
Restart nix-shell so it builds the 'plutus-master'...
- 46
2
votes
Parse error on input ']' when running cabal build in my Plutus code
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE ...
- 206
2
votes
cabal build Out of Memory Mac VS Code Docker
You will not be able to build this in less than 8G of RAM. Adding swap to make the total memory at least 8G may help.
- 2,415
2
votes
cabal: Could not resolve dependencies:plutus-core:happy:exe.happy
The line Falling back to older state () means you probably need to run cabal update first (which downloads a copy of the current hackage index state).
- 2,415
2
votes
How can I set up my dev environment faster after pulling the pioneer code repos for each week
You can create command aliases or write bash scripts to automate certain commands. An example of aliases I've written for myself (in Linux):
alias plutus-nix='cd /home/datapool/plutus-apps; GC_DONT_GC=...
- 198
2
votes
Accepted
Cardano DB Sync - RTS Options
RTS opts are disabled by default in the db-sync build. To enable it add -rtsopts after -with-rtsopts=-N3 for the cardano-db-sync executable in the file cardano-db-sync/cardano-db-sync.cabal.
- 2,415
2
votes
Cabal repl fails because of missing dependency lzma
Two weeks just to realize I hand't followed instructions properly. To be completely fair, it's hard to find documentation that links setting up the plutus playground with the plutus pioneer program, ...
- 31
2
votes
cabal: Failed to build digest-0.0.1.3
The cause of the problem is right there in the error message
cabal-3.6.2.0: Missing dependency on a foreign library:
* Missing (or bad) header file: zlib.h
* Missing (or bad) C library: z
I have ...
- 2,415
2
votes
How to turn (compile) “script.hs” into “script.plutus”?
Take a look at this example: (https://github.com/Apexaverse-metaverse/P2E/blob/main/scripts/mint-token-cli.sh#L22), is a bit clunky but it works:
Using cabal repl. I call writePolicyFile function from ...
- 247
2
votes
Accepted
How to turn (compile) “script.hs” into “script.plutus”?
Another way is to use a separate Utils.hs file (remember add it in your your-app.cabal file for config) for utility fucntions, example:
dataToScriptData :: Data -> ScriptData
dataToScriptData (...
2
votes
Error - Building Cardano Node 1.35.4 in Ubuntu Linux 22.04
I think between CHaP movements and upstream updates the build process has started failing for 1.35.4, they've been fixed since on master branch. But for visibility of those using 1.35.4 to build:
...
- 1,577
2
votes
Accepted
Error when trying to build my Plutus project
You are missing libsodium :
[__0] rejecting: cardano-crypto-class-2.0.0 (conflict: pkg-config package
libsodium-any, not found in the pkg-config database)
The way I get around this is sudo apt ...
- 2,415
2
votes
Failed to build cardano-crypto-wrapper
This is due to use of old forked libsodium dependency. Follow the updated install guide to ensure yourLD_LIBRARY_PATH env var points to the correct build.
If you're using nix, then unset ...
- 1,505
2
votes
Cabal - could not resolve dependencies error
Someone mentioned something to me on the Cardano discord that I needed my cabal.project file. I guess for some reason using cabal init doesn't put it in there? Anyway, after I put that file in there ...
- 121
1
vote
Trouble fulfilling: base, libsystemd-journal, lobemo-scribe-systemd
I received this error when running nix-shell from the plutus repository. To fix I exited that nix-shell, navigated to plutus-apps repository, and checked out the appropriate hash from the cabal....
- 111
1
vote
Accepted
Running week01 expressions in repl
It was newbie mistake. There are these lines at the top
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE ...
- 125
1
vote
Running week01 expressions in repl
Somewhere you have a typo. "ByString" should be "ByteString".
- 2,415
1
vote
Error on cabal build - Encounterd missing dependesies
Check and make sure that your version of the repo has the correct commit-id.
- 130
Only top scored, non community-wiki answers of a minimum length are eligible