javascript - Can't find the module after extension is installed - Stack Overflow

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I'm trying to create VS Code extension. It works when fine when I develop, however when I create the package and install it to VS Code it is failing with following error:

  ERR Cannot find module 'request': Error: Cannot find module 'request'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:602:15)
    at Function.Module._load (internal/modules/cjs/loader.js:528:25)
    at Function.t._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:729:537)
    at Function.t.getExtensionPathIndex.then.a._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:691:639)
    at Function.t.getExtensionPathIndex.then.r._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:655:197)
    at Module.require (internal/modules/cjs/loader.js:658:17)
    at n (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\loader.js:15:874)
    at openBambooPlanUrlInBrowser.GIT.getGitBranchFromFileName (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:397:41)
    at getGitBranchFromFileName.exec (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:383:17)
    at ChildProcess.exithandler (child_process.js:294:7)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:961:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:248:5)

my code:

async openBambooPlanUrlInBrowser(fileName: string) {
    new GIT().getGitBranchFromFileName(fileName, (branch: string) => {
        var config: any = vscode.workspace.getConfiguration('markdown-table-of-contents').get('bitbucketRepositories');
        for (var setting of config) {

            if (fileName.toLowerCase().startsWith(setting.folder.toLowerCase())) {
                branch = branch.replace('/', '-');
                let bambooHost = vscode.workspace.getConfiguration('markdown-table-of-contents').get('atlassianBambooHost');
                const request = require('request');

                request(
                    {
                        url: `${bambooHost}/rest/api/latest/plan/${setting.bambooPlanKey}/branch/${branch}.json`,
                        headers: {
                            "Authorization": 'Basic ' + vscode.workspace.getConfiguration('markdown-table-of-contents').get('atlassianAuthHash')
                        }
                    },
                    (error: string, response: string, body: string) => {
                        let planKey = JSON.parse(body).key;
                        vscode.env.openExternal(vscode.Uri.parse(`${bambooHost}/browse/${planKey}`));
                    }
                );

            }
        }
    });

}

dependencies from package.json

"dependencies": {
    "child_process": "^1.0.2",
    "clipboardy": "^1.2.3",
    "fs": "0.0.1-security",
    "iconv-lite": "^0.4.24",
    "path": "^0.12.7",
    "request": "^2.88.0",
    "util": "^0.11.1",
    "xml2js": "^0.4.19",
    "xmldom": "^0.1.27"
}

root folder:

.gitignore
.vscode
.vscodeignore
depl.bat
markdown-table-of-contents-0.0.1.vsix
node_modules
out
package-lock.json
package.json
src
tsconfig.json
tslint.json

I'm trying to create VS Code extension. It works when fine when I develop, however when I create the package and install it to VS Code it is failing with following error:

  ERR Cannot find module 'request': Error: Cannot find module 'request'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:602:15)
    at Function.Module._load (internal/modules/cjs/loader.js:528:25)
    at Function.t._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:729:537)
    at Function.t.getExtensionPathIndex.then.a._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:691:639)
    at Function.t.getExtensionPathIndex.then.r._load (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\workbench\services\extensions\node\extensionHostProcess.js:655:197)
    at Module.require (internal/modules/cjs/loader.js:658:17)
    at n (c:\Users\USER\AppData\Local\Programs\Microsoft VS Code\resources\app\out\vs\loader.js:15:874)
    at openBambooPlanUrlInBrowser.GIT.getGitBranchFromFileName (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:397:41)
    at getGitBranchFromFileName.exec (C:\Users\USER\.vscode\extensions\dUSER.markdown-table-of-contents-0.0.1\out\extension.js:383:17)
    at ChildProcess.exithandler (child_process.js:294:7)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:961:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:248:5)

my code:

async openBambooPlanUrlInBrowser(fileName: string) {
    new GIT().getGitBranchFromFileName(fileName, (branch: string) => {
        var config: any = vscode.workspace.getConfiguration('markdown-table-of-contents').get('bitbucketRepositories');
        for (var setting of config) {

            if (fileName.toLowerCase().startsWith(setting.folder.toLowerCase())) {
                branch = branch.replace('/', '-');
                let bambooHost = vscode.workspace.getConfiguration('markdown-table-of-contents').get('atlassianBambooHost');
                const request = require('request');

                request(
                    {
                        url: `${bambooHost}/rest/api/latest/plan/${setting.bambooPlanKey}/branch/${branch}.json`,
                        headers: {
                            "Authorization": 'Basic ' + vscode.workspace.getConfiguration('markdown-table-of-contents').get('atlassianAuthHash')
                        }
                    },
                    (error: string, response: string, body: string) => {
                        let planKey = JSON.parse(body).key;
                        vscode.env.openExternal(vscode.Uri.parse(`${bambooHost}/browse/${planKey}`));
                    }
                );

            }
        }
    });

}

dependencies from package.json

"dependencies": {
    "child_process": "^1.0.2",
    "clipboardy": "^1.2.3",
    "fs": "0.0.1-security",
    "iconv-lite": "^0.4.24",
    "path": "^0.12.7",
    "request": "^2.88.0",
    "util": "^0.11.1",
    "xml2js": "^0.4.19",
    "xmldom": "^0.1.27"
}

root folder:

.gitignore
.vscode
.vscodeignore
depl.bat
markdown-table-of-contents-0.0.1.vsix
node_modules
out
package-lock.json
package.json
src
tsconfig.json
tslint.json

• javascript
• node.js
• typescript
• visual-studio-code
• vscode-extensions

Share Improve this question Follow edited Apr 20, 2019 at 12:26 Dmitrij Kultasev asked Apr 20, 2019 at 8:11 Dmitrij KultasevDmitrij Kultasev 5,78788 gold badges5252 silver badges103103 bronze badges 8

• Check the package.json file in root directory ..make sure it's listed under dependencies. – PPB Commented Apr 20, 2019 at 8:20
• it is listed there – Dmitrij Kultasev Commented Apr 20, 2019 at 12:14
• This clearly means that your dependencies were not installed by VS Code when you installed your extension. It mostly happens when your package.json file is not present in the directory where your extension is installed. If the file is already there then you must check that if you have properly published your code. – Pratyush Sharma Commented Apr 20, 2019 at 12:22
• 1 Did you ever find a solution for this issue? I'm facing a similar problem myself – RonH Commented Sep 23, 2019 at 17:11
• 1 Haha this is why you need to answer your own question :) – RonH Commented Sep 24, 2019 at 8:49

 |  Show 3 more ments

3 Answers 3

Sorted by: Reset to default 4

For me the solution was to run npm install <package_name> (notice no "-g") from the extension's code root folder. Vscode puts the extension in its [extension folder][1], navigate there to do npm install.

Example: for linux/mac

cd ~/.vscode/extensions
cd your.extension
npm install

This automatically added it to the devDependencies as well, and the extension worked perfectly from there on.

The solution for me was to make sure typescript wasn't listed in devDependencies but instead only in dependencies inside the package.json file.

Simply moving it into dependencies forced the typescript node module to be included in my .vsix.

I ran into the same problem and what helped was switching from npm to yarn by deleting the lock file and node_modules and running yarn install. vsce package then worked fine

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