about Desktop Viewer

[paprophet]

now,https://www.itwinjs.org/learning/tutorials/develop-desktop-viewer/
"npx create-react-app your-app-name --template @itwin/desktop-viewer --scripts-version @bentley/react-scripts"
but show error

[pmconne]

The error output tells you the name of a file where you can find a complete log of the error(s).
I reproduced your problem on my machine using your same command line. Here's the relevant portion of the log file:

1790 verbose stack @itwin/desktop-viewer-react: No matching version found for @itwin/desktop-viewer-react@^4.7.3.
1790 verbose stack     at module.exports (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/npm-pick-manifest/lib/index.js:209:23)
1790 verbose stack     at RegistryFetcher.manifest (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/pacote/lib/registry.js:119:22)
1790 verbose stack     at async [nodeFromEdge] (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:1059:19)
1790 verbose stack     at async [buildDepStep] (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:929:11)
1790 verbose stack     at async Arborist.buildIdealTree (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/build-ideal-tree.js:207:7)
1790 verbose stack     at async Promise.all (index 1)
1790 verbose stack     at async Arborist.reify (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/reify.js:159:5)
1790 verbose stack     at async Install.exec (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/lib/commands/install.js:146:5)
1790 verbose stack     at async module.exports (/home/paul/.nvm/versions/node/v18.16.0/lib/node_modules/npm/lib/cli.js:134:5)
1791 verbose cwd /home/paul/c/j2/tmp/your-app-name
1792 verbose Linux 5.14.0-1048-oem
1793 verbose node v18.16.0
1794 verbose npm  v9.5.1
1795 error code ETARGET
1796 error notarget No matching version found for @itwin/desktop-viewer-react@^4.7.3.
1797 error notarget In most cases you or one of your dependencies are requesting
1797 error notarget a package version that doesn't exist.

@aruniverse could you find someone to take a closer look?

[aruniverse]

Apologies, the issue has been resolved. Please try the latest template