An error occurred during installation on Windows.

[xiaowanjiagit]

Copying vendor/ directory...
Running: cp -r E:\claudia\temp-claude-package\package\vendor E:\claudia\vendor
'cp' is not recognized as an internal or external command,
operable program or batch file.

❌ Build process failed: Command failed with exit code 1
error: script "build:executables:current" exited with code 1
error: script "prebuild" exited with code 1
beforeBuildCommand bun run build failed with exit code 1
Error beforeBuildCommand bun run build failed with exit code 1
error: script "tauri" exited with code 1

Preparing bundle with native Bun embedding...
Running: bun run scripts/prepare-bundle-native.js

✓ Cleaned up temporary files
Build failed: 57 | };
58 |
59 | async function runCommand(command, args) {
60 | return new Promise((resolve, reject) => {
61 | console.log(Running: ${command} ${args.join(' ')});
62 | const child = spawn(command, args, { stdio: 'inherit' });
^
ENOENT: no such file or directory, uv_spawn 'bun'
path: "bun",
syscall: "spawn bun",
errno: -4058,
spawnargs: [ "run", "scripts/prepare-bundle-native.js" ],
code: "ENOENT"

    at spawn (node:child_process:803:35)
    at spawn (node:child_process:5:39)
    at <anonymous> (E:\claudia\scripts\build-executables.js:62:19)
    at new Promise (1:11)
    at <anonymous> (E:\claudia\scripts\build-executables.js:60:10)
    at runCommand (E:\claudia\scripts\build-executables.js:59:27)
    at <anonymous> (E:\claudia\scripts\build-executables.js:77:9)
    at prepareBundle (E:\claudia\scripts\build-executables.js:75:29)
    at <anonymous> (E:\claudia\scripts\build-executables.js:183:11)

❌ Build process failed: Command failed with exit code 1
error: script "build:executables:current" exited with code 1
error: script "prebuild" exited with code 1
beforeBuildCommand bun run build failed with exit code 1
Error beforeBuildCommand bun run build failed with exit code 1
error: script "tauri" exited with code 1

[lecigarevolant]

FWIW I had a nightmare getting it to work on windows. I'm not sure which of the errors I went through is the one you have above but I think it is one of them. Anyway I got gemini-cli to fix it and then asked it to summarise what it did. Hopefully some of this helps you:

The installation fails on a standard Windows setup due to three issues:

1. A build script uses the Linux/macOS cp -r command to copy directories.
2. Another script fails to properly execute the bun command in a child process.
3. The application's .ico file is not in a format compatible with the Windows compiler.

Follow these steps to fix the issues:

Step 1: Make the File Copying Script Cross-Platform

The scripts/fetch-and-build.js script needs to be modified to handle file copying on Windows.

1. Open the file: scripts/fetch-and-build.js

2. Add a new copyDir function: Insert the following code at the top of the file, right after the import statements, to recursively copy directories in a cross-platform way.

   /**
    * Recursively copy a directory
    * @param {string} src - Source directory
    * @param {string} dest - Destination directory
    */
   async function copyDir(src, dest) {
     await mkdir(dest, { recursive: true });
     const entries = await readdir(src, { withFileTypes: true });
     for (const entry of entries) {
       const srcPath = join(src, entry.name);
       const destPath = join(dest, entry.name);
       if (entry.isDirectory()) {
         await copyDir(srcPath, destPath);
       } else {
         await copyFile(srcPath, destPath);
       }
     }
   }

3. Update the copyRequiredFiles function: Replace the existing copyRequiredFiles function with the one below. This version uses the new copyDir function instead of the incompatible cp -r command.

   /**
    * Copy required files from the Claude Code package to current directory
    * @param {string} packageDir - Path to the extracted package directory
    */
   async function copyRequiredFiles(packageDir) {
     console.log('\n📋 Copying required files from Claude Code package...');
     
     const filesToCopy = [
       'cli.js',
       'yoga.wasm'
     ];
     
     const directoriesToCopy = [
       'vendor'
     ];
     
     // Copy individual files
     for (const file of filesToCopy) {
       const srcPath = join(packageDir, file);
       const destPath = resolve(file);
       
       if (await pathExists(srcPath)) {
         console.log(`Copying ${file}...`);
         await copyFile(srcPath, destPath);
       } else {
         console.warn(`Warning: ${file} not found in package`);
       }
     }
     
     // Copy directories recursively
     for (const dir of directoriesToCopy) {
       const srcPath = join(packageDir, dir);
       const destPath = resolve(dir);
       
       if (await pathExists(srcPath)) {
         console.log(`Copying ${dir}/ directory...`);
         
         // Remove existing directory if it exists
         if (await pathExists(destPath)) {
           await rm(destPath, { recursive: true, force: true });
         }
         
         // Copy directory recursively
         await copyDir(srcPath, destPath);
       } else {
         console.warn(`Warning: ${dir}/ directory not found in package`);
       }
     }
     
     console.log('✓ Required files copied successfully');
   }

Step 2: Fix the Command Execution Script

The scripts/build-executables.js script needs to be told to use the system shell on Windows to find commands.

1. Open the file: scripts/build-executables.js

2. Update the runCommand function: Replace the existing runCommand function with the one below. This version adds the shell: process.platform === 'win32' option to the spawn call.

   async function runCommand(command, args) {
     return new Promise((resolve, reject) => {
       console.log(`Running: ${command} ${args.join(' ')}`);
       const child = spawn(command, args, {
         stdio: 'inherit',
         shell: process.platform === 'win32'
       });
       
       child.on('error', reject);
       child.on('exit', (code) => {
         if (code === 0) {
           resolve();
         } else {
           reject(new Error(`Command failed with exit code ${code}`));
         }
       });
     });
   }

Step 3: Regenerate Application Icons

The existing .ico file is not in a valid format. You can regenerate all icons from a valid .png file using the Tauri CLI.

1. Open your terminal in the project's root directory.

2. Run the following command: This command uses src-tauri/icons/Square107x107Logo.png as a source to create a new, valid set of icons, including icon.ico.

   bunx tauri icon src-tauri/icons/Square107x107Logo.png

Step 4: Run the Application

After applying these fixes, you can now install the dependencies and start the development server.

1. Install dependencies:

   bun install

2. Run the development server:

   bun run tauri dev

The application should now build and launch successfully on Windows.

[Someone45]

@lecigarevolant Does it connect with the WSL version of Claude Code when the UI is installed on Windows?

[lecigarevolant]

Yeah it does EDIT: FWIW you basically can't install Claude Code on windows so it needs to use WSL. I thought at one point it maybe wanted a CC installation on Windows but yeah if you try the npm command it tells you no.

…

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[Real00]

Perfect! This solves my issue.

[lecigarevolant]

Perfect! This solves my issue.

Glad to hear it! I also have seen this which seems like a more comprehensive fix though https://gist.github.com/Kirchlive/184cdd96a56bfd7a6c67997836495f3c

Aaaand as of like 5 hours ago Claude Code works natively on Windows lol, which presumably also will change Claudia's Windows solution lol.