N8n nodes imap - installation problem

Patryk_Wloch · November 25, 2025, 8:49am

Hi, I have a problem. I can’t install https://www.npmjs.com/package/n8n-nodes-imap - it keeps showing me the problem as shown on the screen. I’ve already tried directly through Docker, but the installation was unsuccessful.

What can I do?

The error I get in the N8N UI is "Error installing new package

Error loading package “n8n-nodes-imap” :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly."

markus656 · November 25, 2025, 8:58am

See:

github.com/umanamente/n8n-nodes-imap

[Bug]: Error loading package "n8n-nodes-imap" :The specified package could not be loaded

opened 10:42PM - 12 Nov 25 UTC

horst789github

duplicate external n8n-core-issue

### Node Version v2.7.0 ### Issue Category Installation/Setup ### Issue Desc…ription hi, i used your plugin with v2.7.0 and all works fine... now i see the plugin has new version, so i click "update" but a error comes up in n8n, cant update... i disabled my workflow > try again the update > error... i uninstall the plugin and want to reinstall > error... restart n8n dont help... i install other plugin to test if n8n or my host had problem, all other plugins like n8n-nodes-imap.imap.enhanced works ! error messages: Error installing new package Error loading package "n8n-nodes-imap" :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly. n8n version: 1.119.1 on synology > docker container manager ### Expected Behavior _No response_ ### Actual Behavior _No response_ ### Steps to Reproduce _No response_ ### Error Message/Stack Trace ```text Error installing new package Error loading package "n8n-nodes-imap" :The specified package could not be loaded Cause: Class could not be found. Please check if the class is named correctly. 2025/11/12 23:23:12 stdout Cause: Class could not be found. Please check if the class is named correctly. 2025/11/12 23:23:12 stdout Error loading package "n8n-nodes-imap" :The specified package could not be loaded 2025/11/12 23:22:55 stdout Community package uninstalled: n8n-nodes-imap 2025/11/12 23:21:03 stdout Unrecognized node type: n8n-nodes-imap.imap 2025/11/12 23:20:55 stdout Unrecognized node type: n8n-nodes-imap.imap ``` ### Relevant Logs ```text 2025/11/12 23:23:12 stdout at /usr/local/lib/node_modules/n8n/src/response-helper.ts:161:17 2025/11/12 23:23:12 stdout at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12) 2025/11/12 23:23:12 stdout at CommunityPackagesController.installPackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.controller.ts:127:10) 2025/11/12 23:23:12 stdout Cause: Class could not be found. Please check if the class is named correctly. 2025/11/12 23:23:12 stdout ResponseError: Error loading package "n8n-nodes-imap" :The specified package could not be loaded 2025/11/12 23:23:12 stdout Cause: Class could not be found. Please check if the class is named correctly. 2025/11/12 23:23:12 stdout Error loading package "n8n-nodes-imap" :The specified package could not be loaded 2025/11/12 23:22:55 stdout Community package uninstalled: n8n-nodes-imap 2025/11/12 23:21:03 stdout Unrecognized node type: n8n-nodes-imap.imap 2025/11/12 23:20:55 stdout Unrecognized node type: n8n-nodes-imap.imap 2025/11/12 23:20:51 stdout 2025/11/12 23:20:51 stdout at /usr/local/lib/node_modules/n8n/src/response-helper.ts:161:17 2025/11/12 23:20:51 stdout at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12) 2025/11/12 23:20:51 stdout at CommunityPackagesController.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.controller.ts:264:32) 2025/11/12 23:20:51 stdout at CommunityPackagesService.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.service.ts:353:10) 2025/11/12 23:20:51 stdout at CommunityPackagesService.installOrUpdatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.service.ts:415:48) 2025/11/12 23:20:51 stdout at LoadNodesAndCredentials.loadPackage (/usr/local/lib/node_modules/n8n/src/load-nodes-and-credentials.ts:218:21) 2025/11/12 23:20:51 stdout at LoadNodesAndCredentials.runDirectoryLoader (/usr/local/lib/node_modules/n8n/src/load-nodes-and-credentials.ts:297:16) 2025/11/12 23:20:51 stdout at PackageDirectoryLoader.loadAll (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/nodes-loader/package-directory-loader.ts:45:10) 2025/11/12 23:20:51 stdout at PackageDirectoryLoader.loadNodeFromFile (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/nodes-loader/directory-loader.ts:135:25) 2025/11/12 23:20:51 stdout at PackageDirectoryLoader.loadClass (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/nodes-loader/directory-loader.ts:125:7) 2025/11/12 23:20:51 stdout Error: Class could not be found. Please check if the class is named correctly. 2025/11/12 23:20:51 stdout Class could not be found. Please check if the class is named correctly. 2025/11/12 23:20:51 stdout 2025/11/12 23:20:51 stdout at /usr/local/lib/node_modules/n8n/src/response-helper.ts:161:17 2025/11/12 23:20:51 stdout at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12) 2025/11/12 23:20:51 stdout at CommunityPackagesController.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.controller.ts:264:32) 2025/11/12 23:20:51 stdout at CommunityPackagesService.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.service.ts:353:10) 2025/11/12 23:20:51 stdout at CommunityPackagesService.installOrUpdatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.service.ts:421:10) 2025/11/12 23:20:51 stdout Error: The specified package could not be loaded 2025/11/12 23:20:51 stdout The specified package could not be loaded 2025/11/12 23:20:51 stdout 2025/11/12 23:20:51 stdout at /usr/local/lib/node_modules/n8n/src/response-helper.ts:161:17 2025/11/12 23:20:51 stdout at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12) 2025/11/12 23:20:51 stdout at CommunityPackagesController.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.controller.ts:319:10) 2025/11/12 23:20:51 stdout ResponseError: Error removing package "n8n-nodes-imap":The specified package could not be loaded 2025/11/12 23:20:51 stdout Error removing package "n8n-nodes-imap":The specified package could not be loaded 2025/11/12 23:20:44 stdout The specified package could not be loaded 2025/11/12 23:20:44 stdout 2025/11/12 23:20:44 stdout at /usr/local/lib/node_modules/n8n/src/response-helper.ts:161:17 2025/11/12 23:20:44 stdout at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12) 2025/11/12 23:20:44 stdout at CommunityPackagesController.updatePackage (/usr/local/lib/node_modules/n8n/src/modules/community-packages/community-packages.controller.ts:319:10) 2025/11/12 23:20:44 stdout ResponseError: Error removing package "n8n-nodes-imap":The specified package could not be loaded 2025/11/12 23:20:44 stdout Error removing package "n8n-nodes-imap":The specified package could not be loaded 2025/11/12 23:20:38 stdout Unrecognized node type: n8n-nodes-imap.imap 2025/11/12 23:20:38 stdout Deregistered all crons for workflow 2025/11/12 23:20:38 stdout Could not remove webhooks of workflow "b12APGbFjgc5iagc" because of error: "Unrecognized node type: n8n-nodes-imap.imap" 2025/11/12 23:20:38 stdout Unrecognized node type: n8n-nodes-imap.imap 2025/11/12 23:26:19 stdout Community package installed: n8n-nodes-imap-enhanced ``` ### N8N Version 1.119.1 ### Environment Self-hosted (Docker) ### Operating System _No response_ ### Node.js Version _No response_ ### Troubleshooting Checklist - [x] This is indeed an issue and not a question - [x] I have searched existing issues to make sure this is not a duplicate - [x] I have searched N8N documentation and community forums for similar issues - [x] I have tried restarting my n8n instance - [x] I have checked the n8n logs for additional error information - [ ] I have enabled debug mode by setting N8N_NODES_DEBUG_ENABLED=true - [x] I have verified I'm using a recent version of n8n ### Screenshots _No response_ ### Workaround _No response_ ### Additional Context _No response_

Patryk_Wloch · November 25, 2025, 9:49am

Thanks I got it

system · December 2, 2025, 9:49am

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.