Error: EPERM: operation not permitted, unlink 'bin'

[jorgenfroland]

When running this command:

serverless deploy --stage staging

I get this error:

Serverless: Load command config
Serverless: Load command config:credentials
Serverless: Load command create
Serverless: Load command install
Serverless: Load command package
Serverless: Load command deploy
Serverless: Load command deploy:function
Serverless: Load command deploy:list
Serverless: Load command deploy:list:functions
Serverless: Load command invoke
Serverless: Load command invoke:local
Serverless: Load command info
Serverless: Load command logs
Serverless: Load command login
Serverless: Load command logout
Serverless: Load command metrics
Serverless: Load command print
Serverless: Load command remove
Serverless: Load command rollback
Serverless: Load command rollback:function
Serverless: Load command slstats
Serverless: Load command plugin
Serverless: Load command plugin
Serverless: Load command plugin:install
Serverless: Load command plugin
Serverless: Load command plugin:uninstall
Serverless: Load command plugin
Serverless: Load command plugin:list
Serverless: Load command plugin
Serverless: Load command plugin:search
Serverless: Load command config
Serverless: Load command config:credentials
Serverless: Load command rollback
Serverless: Load command rollback:function
Serverless: Load command requirements
Serverless: Load command requirements:clean
Serverless: Load command requirements:install
Serverless: Invoke deploy
Serverless: Invoke package
Serverless: Invoke aws:common:validate
Serverless: Invoke aws:common:cleanupTempDir
Serverless: Installing required Python packages with python3.6...
Serverless: Docker Image: lambci/lambda:build-python3.6
Serverless: Linking required Python packages...
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Unlinking required Python packages...

  Error --------------------------------------------------

  EPERM: operation not permitted, unlink 'bin'

     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

  Stack Trace --------------------------------------------

Error: EPERM: operation not permitted, unlink 'bin'
    at Object.unlinkSync (fs.js:952:3)
    at fse.readdirSync.map (C:\Users\jfroland\Documents\deployable-lambda-v2\node_modules\serverless-python-requirements\lib\link.js:76:11)
    at Array.map (<anonymous>)
    at ServerlessPythonRequirements.unlinkRequirements (C:\Users\jfroland\Documents\deployable-lambda-v2\node_modules\serverless-python-requirements\lib\link.js:72:38)
From previous event:
    at PluginManager.invoke (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:391:22)
    at PluginManager.spawn (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:409:17)
    at Deploy.BbPromise.bind.then (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\plugins\deploy\deploy.js:117:50)
From previous event:
    at Object.before:deploy:deploy [as hook] (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\plugins\deploy\deploy.js:107:10)
    at BbPromise.reduce (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:391:55)
From previous event:
    at PluginManager.invoke (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:391:22)
    at PluginManager.run (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:422:17)
    at variables.populateService.then.then (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:157:33)
    at runCallback (timers.js:705:18)
    at tryOnImmediate (timers.js:676:5)
    at processImmediate (timers.js:658:5)
    at process.topLevelDomainCallback (domain.js:120:23)
From previous event:
    at Serverless.run (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:144:8)
    at serverless.init.then (C:\Users\jfroland\AppData\Roaming\npm\node_modules\serverless\bin\serverless:44:28)

  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

  Your Environment Information -----------------------------
     OS:                     win32
     Node Version:           10.14.2
     Serverless Version:     1.35.1

I believe this has something to do with it trying to unlink a directory that is treated as a file, but Im not sure. See this post: https://stackoverflow.com/questions/50590798/nodejs-serverless-windows-10/50613829#50613829

[dschep]

Huh.. what version of the plugin are you using? It shouldn't be using symlinks anymore, thus shouldn't have to delete them 😕

[jorgenfroland]

Sorry, forgot to mention that.
`-- [email protected]

[jorgenfroland]

I did a test with inserting an empty return statement in "link.js" in the plugin, just before the line that triggered the error (link.js:76:11). The deploy command completed without any errors:

function unlinkRequirements() {
  const requirementsDir = path.join(this.servicePath, '.serverless/requirements');
  if (!this.options.zip && fse.existsSync(requirementsDir)) {
    this.serverless.cli.log('Unlinking required Python packages...');
    const noDeploy = new Set(this.options.noDeploy || []);
    fse.readdirSync(requirementsDir).map((file) => {
      if (noDeploy.has(file.split(/\.(py|pyc|dist-info\/?)$/)[0])) {
        return;
      }
      return;  // My edit
      fse.unlinkSync(file);
    });
  }
}

module.exports = {linkRequirements, unlinkRequirements};

[dschep]

Is there a particular reason you're using that version and not the latest?

[jorgenfroland]

I followed this tutorial: http://joshuaballoch.github.io/custom-packages-lambda/ and set up a package.json like this:

{
  "name": "deployable-lambda",
  "description": "",
  "version": "0.1.0",
  "dependencies": {},
  "devDependencies": {
    "serverless-python-requirements": "^3.0.10"
  }
}

I thought that this would install the newest version not older than v3.0.10.

[dschep]

Right, that won't install anything < 3 actually, and the latest version is 4.2.5, so I recommend upgrading: npm i serverless-python-requirements@^4.2.5 then try again

[jorgenfroland]

I installed the newest version. Now I encountered issue #274. I got it working by installing plugin with
npm i T-Tmnr/serverless-python-requirements#fix-issue-274