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[docs] Add troubleshooting note for localhive.sh CLI copy failure on macOS/Linux #1128

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37 changes: 37 additions & 0 deletions src/frontend/src/content/docs/get-started/troubleshooting.mdx
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Expand Up @@ -203,6 +203,43 @@ Aspire CLI logs are stored at:
<Code slot="windows" lang="powershell" code="$HOME\.aspire\cli\logs\" />
</OsAwareTabs>

## Building from source

### "Failed to copy CLI files" error on macOS or Linux

This section applies to contributors building Aspire from source with the
`localhive.sh` script in the
[microsoft/aspire](https://github.com/microsoft/aspire) repository. The script
installs a locally built Aspire CLI into a local hive.

**Symptoms**: When running `localhive.sh`, the script exits with:

```text title="Error output"
Failed to copy CLI files from <publish_dir> to <bin_dir>
```

Here, `<publish_dir>` is the CLI `dotnet publish` output directory, and
`<bin_dir>` is the CLI installation directory. By default, `<bin_dir>` is
`$HOME/.aspire/bin`; if you pass `-o` or `--output`, it is the `bin` directory
under that output path.

On macOS/BSD, this appears as `cp: .../fr is a directory (not copied)`. On Linux/GNU, it appears as `cp: -r not specified; omitting directory '...'`.

**Cause**: The `dotnet publish` output for the CLI includes culture-specific resource subdirectories (for example, `fr/`, `de/`). The plain `cp` invocation without `-R` cannot copy directories.

**Solution**: If you're working from the `release/13.4` branch, apply the
one-line copy command fix in `localhive.sh`:

```diff title="localhive.sh"
- if ! cp -f "$CLI_PUBLISH_DIR"/* "$CLI_BIN_DIR"/; then
+ if ! cp -Rf "$CLI_PUBLISH_DIR"/. "$CLI_BIN_DIR"/; then
```

Alternatively, update `localhive.sh` from the
[`main` branch of microsoft/aspire](https://github.com/microsoft/aspire/blob/main/localhive.sh)
or cherry-pick [microsoft/aspire#17670](https://github.com/microsoft/aspire/pull/17670)
if you are pinned to a release branch.

## See also

- [Create your first Aspire app](/get-started/first-app/)
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