The latest articles on DEV Community by Evgenii Bazhanov (@ebazhanov). https://dev.to/ebazhanov https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F309654%2Fe20dd575-071d-4d9d-a8e4-bbbeb31d6876.JPG https://dev.to/ebazhanov en Evgenii Bazhanov Mon, 21 Nov 2022 18:31:02 +0000 https://dev.to/ebazhanov/wasm32-unknown-unknown-target-may-not-be-installed-macos-m1-1poe https://dev.to/ebazhanov/wasm32-unknown-unknown-target-may-not-be-installed-macos-m1-1poe <p>If you go in the loop by executing <code>$ cargo build --release --target wasm32-unknown-unknown --lib</code>, that means you have installed Rust on your MacBook M1 using <code>brew installer</code></p> <p><strong>My setup</strong> at the time when I caught this problem was: </p> <ul> <li>macOS (M1)</li> <li>Rust installed by <a href="https://formulae.brew.sh/formula/rust" rel="noopener noreferrer"><code>brew install rust</code></a> </li> <li><p><code>$ rustc --print sysroot <br> **/opt/homebrew/Cellar/rust/1.64.0**</code></p></li> <li><p>as you can see all attempt to execute wasm boundaries command, bring me to the circle of non-installed wasm32 target (which was installed) </p></li> </ul> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fqhesdy8xwzdk9opfyczo.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fqhesdy8xwzdk9opfyczo.png" alt="Image description" width="766" height="290"></a></p> <p><strong>Solution #1:</strong> <em>Install using <a href="https://www.rust-lang.org/tools/install" rel="noopener noreferrer">https://www.rust-lang.org/tools/install</a></em><br> Install rustup on top already installed library (by brew) does not fix anything. </p> <p><strong>Solution #2:</strong> <em>Uninstall existing rust version</em></p> <ul> <li> <code>$ brew uninstall rust</code> </li> <li>keep only one default <code>.rustup/toolchains/stable-aarch64-apple-darwin</code> </li> </ul> <p><strong>Next:</strong> Install Rust from correct source</p> <ul> <li>from <a href="https://www.rust-lang.org/tools/install" rel="noopener noreferrer">www.rust-lang.org</a> </li> </ul> <p><strong>Problem solved!</strong> 🎉</p> <p><strong>p.s.</strong> check out this course where I got this issue (Free) <iframe src="https://player.vimeo.com/video/754017140" width="710" height="399"> </iframe> </p> <p>my project: <a href="https://github.com/Ebazhanov/cosmwasm-blockchain-smart-contract-example" rel="noopener noreferrer">https://github.com/Ebazhanov/cosmwasm-blockchain-smart-contract-example</a></p> cosmwasm wasm32 brew macbookm1 Evgenii Bazhanov Sat, 19 Nov 2022 07:08:29 +0000 https://dev.to/ebazhanov/build-your-first-smart-contract-with-cosmwasm-5h6j https://dev.to/ebazhanov/build-your-first-smart-contract-with-cosmwasm-5h6j <p>For the last two weeks, I spend my time following free courses on <a href="https://vimeo.com/user109497220" rel="noopener noreferrer">Vimeo</a>, to build CosmWasm blockchain.</p> <p><em><code>screenshot with "donate" function from the contract.rs file:</code></em></p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F9r8fg10xbv75m0v5e9gh.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F9r8fg10xbv75m0v5e9gh.png" alt="Image description" width="798" height="493"></a></p> <p><strong>What I have learned:</strong></p> <ul> <li> <a href="https://www.rust-lang.org/" rel="noopener noreferrer">Rust</a> languages, to create CosmWasm Smart Contracts</li> <li>Basic tools, library: <a href="https://crates.io/crates/cosmwasm-std" rel="noopener noreferrer">cosmwasm-std</a>, <a href="https://crates.io/crates/cw-storage-plus" rel="noopener noreferrer">cw-storage-plus</a>, <a href="https://crates.io/crates/cw-multi-test" rel="noopener noreferrer">cw-multi-test</a>, ... .</li> <li>Contract entry points, state management, migration ... . </li> <li>How to write Unit Tests!</li> </ul> <ul> <li><p>The course focuses on giving you raw knowledge and showing you the best practices to make your life easier in the future!</p></li> <li><p>My skills in Rust languages increased drastically, I feel like I am confident enough to continue building my own blockchain.</p></li> <li><p>Next goal is <a href="https://cosmonaut.cosmwasm.com/" rel="noopener noreferrer">https://cosmonaut.cosmwasm.com/</a></p></li> </ul> <p><strong>Resources:</strong></p> <ul> <li>video tutorials: <a href="https://vimeo.com/user109497220" rel="noopener noreferrer">https://vimeo.com/user109497220</a> </li> <li>my source code: <a href="https://github.com/Ebazhanov/cosmwasm-blockchain-smart-contract-example" rel="noopener noreferrer">https://github.com/Ebazhanov/cosmwasm-blockchain-smart-contract-example</a> </li> </ul> <p>Have fun! </p> algorithms programming softwaredevelopment