Hello guys, I have a problem with JSDOM library. When I run

npx sst start

I get this error:

==========================
 Starting Live Lambda Dev
==========================

Transpiling Lambda code...
 > addons/foo/node_modules/jsdom/lib/jsdom/utils.js:160:25: error: Could not resolve "canvas" (mark it as external to exclude it from the bundle, or surround it with try/catch to handle the failure at run-time)
    160 │   const Canvas = require("canvas");

I’ve been marked

canvas

as external, in this way:

const topic = new sst.Topic(stack, 'mail-receipt', {
      subscribers: ['addons/foo/index.foo'],
      snsTopic: {
        topicName: 'mail-receipt'
      },
      defaultFunctionProps: {
        bundle: {
          externalModules: ['canvas']
        }
      }
    });

After this change I don’t get any error when I run

sst deploy

but I still have the same problem “Could not resolve “canvas”… ” when run

sst start

Is there any difference on esbuild process between deploy/start? Any suggestion to solve it?

You may need to add it to nodeModules rather than externalModules if it's something your code relies on

thanks @Ross Coundon, I was reading now on JSDOM doc: Since jsdom v13, version 2.x of 

canvas

 is required; version 1.x is no longer supported. I tried to install many times canvas but I get this error:

==========================
 Starting Live Lambda Dev
==========================

Transpiling Lambda code...
 > addons/foo/node_modules/canvas/lib/bindings.js:3:25: error: No loader is configured for ".node" files: addons/turo-sync/node_modules/canvas/build/Release/canvas.node
    3 │ module.exports = require('../build/Release/canvas.node');

Should I load canvas.node thorough bundle settings? I’m using monorepo with yarn.

As for the

No loader is configured

error, try configuring the loader inside bundle like this https://docs.serverless-stack.com/constructs/Function#configure-bundling

thanks @Frank I solve it as described in your link

const topic = new sst.Topic(stack, 'mail-receipt', {
      subscribers: ['addons/foo/src/index.emailReceiptTrigger'],
      snsTopic: {
        topicName: 'mail-receipt'
      },
      defaultFunctionProps: {
        bundle: {
          externalModules: ['canvas'],
          loader: {
            ".node": "dataurl",
          },
        }
      }
    });

canvas wasn’t installed because I just update jsdom (after v13 canvas was required)

I see. I guess if you had

canvas

installed, that would’ve resolved the original error.