"Packaging: No files found" in deploy.

I develop appsync by using serverless framework. I could deploy api successfully. Next I wanted to test it locally, so I introduced serverless-webpack, serverless-appsync-simulator, serverless-dynamodb-local and serverless-offline. I could test in local but couldn’t deploy with the following error. I comment outed serverless-webpack in serverless.yml. I could deploy successfully again. What should I do ?

error-log

$ serverless deploy -v --aws-profile private_name
Serverless: To ensure safe major version upgrades ensure "frameworkVersion" setting in service configuration (recommended setup: "frameworkVersion: ^2.48.0")

Serverless: Load command interactiveCli
Serverless: Load command config
Serverless: Load command config:credentials
Serverless: Load command config:tabcompletion
Serverless: Load command config:tabcompletion:install
Serverless: Load command config:tabcompletion:uninstall
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 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 upgrade
Serverless: Load command uninstall
Serverless: Load command delete-appsync
Serverless: Load command validate-schema
Serverless: Load command graphql-playground
Serverless: Load command deploy-appsync
Serverless: Load command update-appsync
Serverless: Load command webpack
Serverless: Load command login
Serverless: Load command logout
Serverless: Load command generate-event
Serverless: Load command test
Serverless: Load command dashboard
Serverless: Load command output
Serverless: Load command output:get
Serverless: Load command output:list
Serverless: Load command param
Serverless: Load command param:get
Serverless: Load command param:list
Serverless: Load command studio
Serverless: Skipping variables resolution with old resolver (new resolver reported no more variables to resolve)
Serverless: Invoke deploy
Serverless: Invoke package
Serverless: Invoke aws:common:validate
Serverless: Invoke aws:common:cleanupTempDir
AppSync Plugin: GraphQl schema valid
Serverless: Invoke webpack:validate
Serverless: Using configuration:
{
  "includeModules": true,
  "webpackConfig": "webpack.config.js",
  "packager": "npm",
  "packagerOptions": {},
  "keepOutputDirectory": false,
  "concurrency": 8
}
Serverless: Removing /Users/name/Documents/git/Serverless/serverless-appsync-tutorial/.webpack
Serverless: Invoke webpack:compile
Serverless: Bundling with Webpack...
webpack compiled successfully in 38 ms
Serverless: Invoke webpack:package
Serverless: Fetch dependency graph from /Users/name/Documents/git/Serverless/serverless-appsync-tutorial/package.json
Serverless: Ignoring 1 NPM errors:
Serverless: => missing: serverless@^1.60.0 || 2, required by serverless-offline@7.0.0
Serverless: No external modules needed
 
 Serverless Error ----------------------------------------
 
  ServerlessError: Packaging: No files found
      at ServerlessWebpack.zip (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/serverless-webpack/lib/packageModules.js:62:19)
      at /Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/serverless-webpack/lib/packageModules.js:139:10
      at tryCatcher (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/util.js:16:23)
      at Object.gotValue (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/reduce.js:166:18)
      at Object.gotAccum (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/reduce.js:155:25)
      at Object.tryCatcher (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/util.js:16:23)
      at Promise._settlePromiseFromHandler (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/promise.js:547:31)
      at Promise._settlePromise (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/promise.js:604:18)
      at Promise._settlePromiseCtx (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/promise.js:641:10)
      at _drainQueueStep (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/async.js:97:12)
      at _drainQueue (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/async.js:86:9)
      at Async._drainQueues (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/async.js:102:5)
      at Immediate.Async.drainQueues [as _onImmediate] (/Users/name/Documents/git/Serverless/serverless-appsync-tutorial/node_modules/bluebird/js/release/async.js:15:14)
      at processImmediate (node:internal/timers:464:21)

serverless.yml

service: serverless-appsync-tutorial

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: ap-northeast-2

plugins:
  - serverless-appsync-plugin
  - serverless-webpack
  - serverless-dynamodb-local
  - serverless-appsync-simulator
  - serverless-offline

custom:
  webpack:
    includeModules: true

  # some config

  dynamodb:
    stages:
      - dev
    start:
      port: 8000
      inMemory: true
      migrate: true
      seed: true
    seed:
      dev:
        sources:
          - table: UserTable
            sources: [./migrations/user.json]
          - table: ChatMessageTable
            sources: [./migrations/chatMessage.json]
  serverless-offline:
    useChildProcesses: true
    allowCache: true
  appsync-simulator:
    apiKey: da2-******

package.json

{
  "dependencies": {
    "serverless-appsync-plugin": "^1.11.3",
    "serverless-appsync-simulator": "^0.17.0",
    "serverless-dynamodb-local": "^0.2.39",
    "serverless-offline": "^7.0.0",
    "serverless-webpack": "^5.5.1",
    "webpack": "^5.40.0",
    "webpack-cli": "^4.7.2",
    "webpack-node-externals": "^3.0.0"
  }
}

webpack.config.js

const webpack = require("webpack");
const slsw = require("serverless-webpack");
const nodeExternals = require("webpack-node-externals");

module.exports = {
  entry: slsw.lib.entries,
  mode: slsw.lib.webpack.isLocal ? "development" : "production",
  target: "node",
  externals: [nodeExternals()],
  // plugins: [new webpack.IgnorePlugin({resourceRegExp: /^pg-native$/})],
};

My environment

Your Environment Information ---------------------------
     Operating System:          darwin
     Node Version:              16.0.0
     Framework Version:         2.48.0
     Plugin Version:            5.4.1
     SDK Version:               4.2.3
     Components Version:        3.12.0

[j0k3r]

Checking your serverless.yml file, you don’t have functions declared. Is it intended? I think that’s why serverless-webpack doesn’t find any files to package.

[ChrisLFieldsII]

@j0k3r @yukitaka13-1110

Problem:

Checking your serverless.yml file, you don’t have functions declared. Is it intended? I think that’s why serverless-webpack doesn’t find any files to package.

I just ran into this issue myself and can confirm this is correct.

I created a serverless project with sls create -t aws-nodejs-typescript because I wanted typings for my config file.

I only needed to create a S3 resource so no functions were needed and I removed them from my config. Upon running sls deploy, I got the error Packaging: No files found in packageModules.js and then ended up here lol.

Here is an example repo I made to reproduce the error.

Solution:

I took your advice and just commented out the plugins variable of the serverless.ts and then ran sls deploy and all was good! When functions are needed, just uncomment.

TODOs:

Ultimately, this issue was caused by the sls create template assuming that users who choose the aws-nodejs-typescript are 100% going to include a function in their serverless.ts config.

I’m not for sure where or what the fix should be if any to prevent others from going on the hour goose-hunt I did lol.

My recommended fix would be that the generated aws-nodejs-typescript has a comment regarding this in the config file.