Canvas locally-hosted internal server error when sending request to authorize_redirect endpoint

Hello,

Describe the bug When attempting to access the Canvas authorize_redirect endpoint, it throws an internal server error (error code 500). When I check the Canvas error log it says “undefined method `sign’ for nil:NilClass”. Any help would be greatly appreciated.

Registration Code await lti.registerPlatform({ url: ‘https://canvas.instructure.com’, name: ‘Canvas Instructure’, clientId: ‘10000000000005’, authenticationEndpoint: ‘http://192.168.1.43/api/lti/authorize_redirect’, accesstokenEndpoint: ‘http://192.168.1.43/login/oauth2/token’, authConfig: { method: ‘JWK_SET’, key: ‘http://192.168.1.43/api/lti/security/jwks’ } })

Debug console logs provider:main Platform already registered +47ms provider:main Receiving request at path: /login +9s provider:main Receiving a login request from: https://canvas.instructure.com, clientId: 10000000000005 +1ms provider:main Redirecting to platform authentication endpoint +6ms provider:main Target Link URI: http://localhost:3000 +0ms provider:main Login request: +2ms provider:main { provider:main response_type: ‘id_token’, provider:main response_mode: ‘form_post’, provider:main id_token_signed_response_alg: ‘RS256’, provider:main scope: ‘openid’, provider:main client_id: ‘10000000000005’, provider:main redirect_uri: ‘http://localhost:3000’, provider:main login_hint: ‘33f5627d790a427db3d213600ad0bddc85411a1a’, provider:main nonce: ‘lcouezf8unuh6tib8rbd43gbz’, provider:main prompt: ‘none’, provider:main state: ‘008171e660418d3f2b72eec60cb455f854e16378d2321f2b9e’, provider:main lti_message_hint: ‘eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ2ZXJpZmllciI6IjMxZDhkOGE4ZDQ3ODcwOWFlMDNhMDk2ODQzZjU2ZTI4MTk1MjJlMmYzYjg3YWQzYjNjYWIyMWM0ZjEwZTM2NjMwYzYzMjE0YTMxN2QwZDFiYjVhMjZiZDJiZjE5NDJjOWZlOWY2Y2MwM2E0YjVhNzBhNzU1OTUwYTc4ZGM0ZTA3IiwiY2FudmFzX2RvbWFpbiI6IjE5Mi4xNjguMS40MyIsImNvbnRleHRfdHlwZSI6IkFjY291bnQiLCJjb250ZXh0X2lkIjoxMDAwMDAwMDAwMDAwMiwiY2FudmFzX2xvY2FsZSI6ImVuIiwiZXhwIjoxNjYyMjM0NDAwfQ._gxbB92MEb_nt5anHjdy39C3PSg4QS3fG4smjiVMO3M’ provider:main }

Ltijs version

• Version: 5.9.0

NodeJS version

• Version: 16.13.1

Platform used

• Canvas (locally-hosted) (packaged by Bitnami)
• Version: 2022.7.20-142.

[pepeL95]

Yea, just type in the browser http://your-canvas-host/error_reports/your-error-id

For example, in my case I typed http://192.168.1.43/error_reports/1 @dmolin

[dmolin]

@dmolin May I ask how did you fix the ntp configurations?

Here are the step I followed (I’m pulling that from memory but that should be roughly correct):

Fixing Bitnami’s VM

• update your system: sudo apt-get update -y
• Install DBUS: sudo apt-get install dbus
• ensure you’ve the timedatectl command installed (you should be able to run it with sudo)
• reboot
• install systemd-timesyncd: sudo apt-get install systemd-timesyncd
• enable systemd-timesyncd service: sudo systemctl enable systemd-timesyncd.service (maybe reboot after that too)
• now you should be able to see some results with timedatectl: sudo timedatectl list-timezones
• set your timezone: an example: sudo timedatectl set-timezone Europe/London
• enable the NTP network time service: sudo timedatectl set-ntp on
• shutdown again