# Sdk build cargo build error

**URL:** <https://forum.dfinity.org/t/sdk-build-cargo-build-error/11609>\
**Category:** Developers\
**Tags:** Functional-Programming\
**Created:** [March 21, 2022, 8:17am UTC](https://forum.dfinity.org/t/sdk-build-cargo-build-error/11609 "2022-03-21T08:17:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![avi](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/avi/32/1904_2.png) [@avi](https://forum.dfinity.org/u/avi)\
**Post date:** [March 21, 2022, 8:17am UTC](https://forum.dfinity.org/t/sdk-build-cargo-build-error/11609/1 "2022-03-21T08:17:34Z")

</div>

```auto
git clone https://github.com/dfinity/sdk.git

cargo build

// 
  --- stdout
  cargo:rerun-if-env-changed=DFX_ASSETS
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/nix/sources.json
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/scripts/dfx-asset-sources.sh
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/scripts/prepare-dfx-assets.sh
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/assetstorage.did
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/assetstorage.wasm
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/ui.did
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/ui.wasm
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/wallet.did
  cargo:rerun-if-changed=/Users/name/Documents/dfinity/sdk/src/distributed/wallet.wasm
  cargo:error=unable to run /Users/name/Documents/dfinity/sdk/scripts/prepare-dfx-assets.sh:
  cargo:error=curl: (3) URL using bad/illegal format or missing URL

```