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In this course, students will learn about the fundamentals of blockchain technology as well as the cryptocurrencies built on top of it. Module 1 serves as an intro to the concept of blockchains, cryptocurrencies, limitations of these services, and payment channels. Module 2 explains tokens and gives students the opportunity to experiment with an ERC-20 style token built on Motoko. In Module 3 students begin their own implementation of a payment channel in Motoko, and in Module 4 they finish this implementation. Each module builds upon concepts learned and activities completed in the prior modules.

License: Other

Modelica 100.00%
payment-channel blockchain motoko internet-computer

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blockchain-and-cryptocurrency's Issues

type error [M0029], unbound type Word8

When I'm running the example code, there's an error:

/blockchain-and-cryptocurrency/vendor/motoko-token/src/Hex.mo:20.22-20.27: type error [M0029], unbound type Word8

My dfx version is dfx 0.7.0-beta.8

Is this a problem caused by the SDK's version ?

Kernel Panic Bug

After running dfx deploy in the second md file:

$ dfx deploy
Deploying all canisters.
All canisters have already been created.
Building canisters...
/Users/michaelzetune/GDrive/Development/Projects/crypto/blockchain-and-cryptocurrency/vendor/motoko-token/app/../src/Hex.mo:63.22-63.31: warning [M0152], the arithmetic operation * on Word8 is deprecated, use *% instead
/Users/michaelzetune/GDrive/Development/Projects/crypto/blockchain-and-cryptocurrency/vendor/motoko-token/app/../src/Hex.mo:63.22-63.36: warning [M0152], the arithmetic operation + on Word8 is deprecated, use +% instead

Installing canisters...
thread 'main' panicked at 'not implemented', /sources/candid-0.6.16/src/parser/random.rs:206:18
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

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