Error installing new package

[blackchineykh]

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Error loading package "n8n-nodes-browserless" :The specified package could not be loaded Cause: Class extends value undefined is not a constructor or null

n8n Version 1.61.0

[minhlucvan]

Hi @blackchineykh, could you share more logs, I am able to run the node with [email protected]

[att083]

same issue here, I installed n8n via https://github.com/n8n-io/self-hosted-ai-starter-kit. using docker desktop. The version I use is 1.62.4

2024-10-11 16:44:12 Error loading node "Browserless" from: "/home/node/.n8n/nodes/node_modules/n8n-nodes-browserless/dist/nodes/Browserless/Browserless.node.js" - Class extends value undefined is not a constructor or null 2024-10-11 16:44:13 InternalServerError: Error loading package "n8n-nodes-browserless" :The specified package could not be loaded 2024-10-11 16:44:13 Cause: Class extends value undefined is not a constructor or null

[minhlucvan]

Hi @att083 , did you install the node from GUI

[minhlucvan]

btw, I have another node that kind of similar to browserless called firecrawl

https://community.n8n.io/t/n8n-community-node-firecrawl/55546

you might want to check it out while reolving the issue

[blackchineykh]

Hi @blackchineykh, could you share more logs, I am able to run the node with [email protected]

Here are the logs I see. I am installing from the GUI

Error loading node "Browserless" from: "/home/node/.n8n/nodes/node_modules/n8n-nodes-browserless/dist/nodes/Browserless/Browserless.node.js" - Class extends value undefined is not a constructor or null
InternalServerError: Error loading package "n8n-nodes-browserless" :The specified package could not be loaded
Cause: Class extends value undefined is not a constructor or null
Error loading node "Browserless" from: "/home/node/.n8n/nodes/node_modules/n8n-nodes-browserless/dist/nodes/Browserless/Browserless.node.js" - Class extends value undefined is not a constructor or null
InternalServerError: Error loading package "n8n-nodes-browserless" :The specified package could not be loaded
Cause: Class extends value undefined is not a constructor or null
browserId check failed on /rest/community-packages/

[Zewb]

Hey @minhlucvan same issue as the other person.

Error installing new package
Error loading package "n8n-nodes-browserless" :The specified package could not be loaded Cause: Class extends value undefined is not a constructor or null

[SvbZ3r0]

Error loading package "n8n-nodes-browserless" :The specified package could not be loaded
Cause: Class could not be found. Please check if the class is named correctly.
ResponseError: Error loading package "n8n-nodes-browserless" :The specified package could not be loaded
Cause: Class could not be found. Please check if the class is named correctly.
    at CommunityPackagesController.installPackage (/usr/local/lib/node_modules/n8n/dist/controllers/community-packages.controller.js:81:19)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at handler (/usr/local/lib/node_modules/n8n/dist/decorators/controller.registry.js:93:24)
    at /usr/local/lib/node_modules/n8n/dist/response-helper.js:110:26

I faced a similar issue trying to install this from the GUI. Running n8n docker on unRaid.

[GollyJer]

Error loading package "n8n-nodes-browserless" :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly. ResponseError: Error loading package "n8n-nodes-browserless" :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly. at CommunityPackagesController.installPackage (/usr/local/lib/node_modules/n8n/dist/controllers/community-packages.controller.js:81:19) at processTicksAndRejections (node:internal/process/task_queues:95:5) at handler (/usr/local/lib/node_modules/n8n/dist/decorators/controller.registry.js:93:24) at /usr/local/lib/node_modules/n8n/dist/response-helper.js:110:26

I faced a similar issue trying to install this from the GUI. Running n8n docker on unRaid.

Any luck getting this working @SvbZ3r0?
I'm also using unraid and facing the same issue. I haven't had trouble installing any other community nodes.

[SvbZ3r0]

Nope. I ended up using a completely different product for my issue.

[GollyJer]

Nope. I ended up using a completely different product for my issue.

Hey @SvbZ3r0 thanks for the response. Did you end up with something else that worked in n8n, or not using n8n at all. Just curious. Thanks!

[SvbZ3r0]

Didn't use n8n at all. I tried Scraperr, and while it was powerful, it wasn't exactly intutive. I ended up using a good Windows based tool called Octoparse.

[sbc]

I'm also unable to get this plugin working. I'm on n8n 1.77.3.

Installed via the web. Getting the following in the UI when testing a node:

Problem running workflow Unrecognized node type: browserless.undefined

Seeing the following in the logs:

2025-03-02T21:08:32.990215777Z app[web.1]: Unrecognized node type: browserless.undefined 2025-03-02T21:08:32.990260112Z app[web.1]: Error: Unrecognized node type: browserless.undefined 2025-03-02T21:08:32.990263649Z app[web.1]: at LoadNodesAndCredentials.getNode (/usr/local/lib/node_modules/n8n/dist/load-nodes-and-credentials.js:285:19) 2025-03-02T21:08:32.990266656Z app[web.1]: at NodeTypes.getByNameAndVersion (/usr/local/lib/node_modules/n8n/dist/node-types.js:36:51) 2025-03-02T21:08:32.990269581Z app[web.1]: at new Workflow (/usr/local/lib/node_modules/n8n/node_modules/n8n-workflow/dist/Workflow.js:56:39) 2025-03-02T21:08:32.990272467Z app[web.1]: at TestWebhooks.toWorkflow (/usr/local/lib/node_modules/n8n/dist/webhooks/test-webhooks.js:290:16) 2025-03-02T21:08:32.990275292Z app[web.1]: at TestWebhooks.needsWebhook (/usr/local/lib/node_modules/n8n/dist/webhooks/test-webhooks.js:169:31) 2025-03-02T21:08:32.990278107Z app[web.1]: at WorkflowExecutionService.executeManually (/usr/local/lib/node_modules/n8n/dist/workflows/workflow-execution.service.js:114:58) 2025-03-02T21:08:32.990281003Z app[web.1]: at processTicksAndRejections (node:internal/process/task_queues:95:5) 2025-03-02T21:08:32.990283758Z app[web.1]: at WorkflowsController.runManually (/usr/local/lib/node_modules/n8n/dist/workflows/workflows.controller.js:293:16) 2025-03-02T21:08:32.990286594Z app[web.1]: at handler (/usr/local/lib/node_modules/n8n/dist/decorators/controller.registry.js:93:24) 2025-03-02T21:08:32.990289379Z app[web.1]: at /usr/local/lib/node_modules/n8n/dist/response-helper.js:110:26

[sbc]

I'm also unable to get this plugin working. I'm on n8n 1.77.3.

In my case it ended up being a permissions error in my n8n directory. I followed the instructions for manual installation and that got it squared away.

[ljohnso16]

@sbc what permission? I installed via docker still have the same error when installing

[sbc]

In my case I had my n8n directory (/home/node/.n8n) mounted via docker but it was owned by the wrong user. I needed to use chown -R 1000:1000 to change ownership to the dokku user. Then I was able to manually install the node by following these steps:

https://docs.n8n.io/integrations/community-nodes/installation/manual-install/

[cdxiaodong]

so do i Error loading package "n8n-nodes-wechat-offiaccount" :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly.

version：1.89.2 / 1.90.2

but it does success in another clean machine version:1.85.4