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      • Account billing and packages
        • Packages & Pricing
        • Enterprise packages
        • Charges
        • Business packages
        • SLA & Uptime Guarantees
      • General
        • FAQ
        • Getting Started
        • Contacting us
      • Realtime API and client libraries
        • Platform support
        • Connections
        • Common issues
        • Authentication
      • Troubleshooting
        • Device support
        • Development tools
      • Channels
        • Messages
        • Subscribing and publishing
        • Presence
        • Namespaces and naming
        • General
      • REST API and client libraries
        • Usage
        • Common issues
      • Ably error codes
        • Client errors
        • Server errors
        • General
        • Channel Errors
        • Connection Errors
      • Account and app setup and configuration
        • Accounts and apps
        • Keys and tokens
        • User management
      • Ably architecture, transports, and security
        • Transports and connections
        • Security
        • Protocol support and protocol adapters
        • Data centres
        • Ably architecture design
      • Performance and Redundancy
        • Redundancy & reliability
        • Performance
      • Push and Smart Notification
        • Setup
        • Common questions
        • Troubleshooting
      • Reactor Queues, Events and Firehose
        • Reactor Events, Webhooks and Functions
        • Reactor Message Queues
        • Reactor Firehose
      • Migrating to Ably from an existing service
        • Migrating from PubNub
        • Migrating from Realtime.co
        • Migrating from Pusher
        • Migrating from Socket.io
      • API Streamer
        • General

      Troubleshooting

      Potential errors, issues, and problems encountered when trying to set up Ably

      Device support

      • "java.lang.NoSuchFieldError: DEFAULT_PACKER_CONFIG" code when instantiating ably-java
      • Which browsers do you support with your Javascript library?
      • Exception tracking in client libraries
      • ably-js: "Unable to parse request body" error when publishing large messages from old browsers

      Development tools

      • I'm not receiving messages, how do I debug that?
      • How can I debug Reactor Queues and Queue rules?
      • Generating a HAR file for troubleshooting
      • Do you have a debugging or development console for testing?
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