Error category
Fix GitHub Copilot authentication, quota, chat, editor integration, certificate, and agent editing failures in developer workflows.
This GitHub Copilot troubleshooting hub collects real error signatures, quick fixes, common causes, and step-by-step debugging paths for developers who need a practical answer instead of a broad overview.
72 crawlable articles in this category. 49 additional records are indexed in JSON only (no standalone HTML route).
Browse GitHub Copilot records in the data catalog — search JSON index entries, including data-only records without standalone HTML guides.
Start by matching the exact error message, then check the technology, environment, credentials, network path, and deployment context. The pages below are grouped so you can move from broad GitHub Copilot symptoms to specific root-cause families without relying on client-side search.
Evidence labels are derived at build time from each Markdown record. Source-backed entries have public URLs under a Sources checked section, while partial-source entries expose public links without a complete source block.
These entries include public source URLs in the imported page body. Use them first when you need evidence for provider behavior, SDK regressions, or version-specific failures.
Diagnose and fix GitHub Copilot CLI authentication failures caused by silent swallowing of REST quota exceeded and rate limit errors during token validation phase Includes evidence for GitHub Copilot troubleshooting demand.
Session was not created with authentication info or custom provider (root cause: CLI auth flow silently swallows REST quota/rate-limit errors during token validation) Developers using GitHub Copilot CLI via MCP sessions experience silent OAuth token expiration after ~60 minutes. The silent refresh sends outdated OAuth v1 resource format instead of v2 scope format, causing Azure AD rejection (AADSTS90009). Long-running coding sessions die unexpectedly without re-auth flow. Includes evidence for GitHub Copilot troubleshooting demand.
MCP silent token refresh sends v1 resource=<clientId> instead of v2 scope= → AADSTS90009 after ~60 min / GitHub Copilot API token expires mid-session with no proactive refresh, causing 401 errors in long-running subagents Paying Pro+ users hit weekly rate limit despite subscription; auto mode sometimes works but manual model selection instantly triggers rate limit error Includes evidence for GitHub Copilot troubleshooting demand.
"You've reached your weekly rate limit. Please upgrade your plan or wait for your limit to reset on <date>" / "Failed to connect to API: 429 Too Many Requests user_global_rate_limited:pro_plus" Fix persistent Copilot Pro+ weekly rate limit that does not reset, blocking paid subscribers from using any model Includes evidence for GitHub Copilot troubleshooting demand.
Sorry, you've exceeded your 5 hour session limits. Please review our Terms of Service. Code: user_weekly_rate_limited:pro_plus Restore GitHub Copilot authentication in VS Code when the extension fails to connect with auth provider registration timeout, credential cache corruption, or 403 token fetch errors Includes evidence for GitHub Copilot troubleshooting demand.
Failed to get copilot token | Timed out waiting for authentication provider to register | Failed to fetch token entitlements Server returned 403 Understand and manage unexpected Copilot bill escalation after Microsoft switches from flat-rate subscription to per-token usage billing effective June 1, 2026 Includes evidence for GitHub Copilot troubleshooting demand.
Token-based billing overage — user cost jumps from $29/mo to $750-$3,000/mo after usage-based billing rollout Copilot Pro user gets rate-limited despite having only used half monthly quota; error never clears even after waiting hours; wants rate limit resolved or plan reset Includes evidence for GitHub Copilot troubleshooting demand.
You have hit your global rate limit. Please upgrade your plan or wait for your limit to reset. Persists over 6 hours at 45% usage Paid Copilot Pro/Pro+ users hit persistent rate limit errors that don't resolve even after waiting hours, despite having significant unused quota allocation. Includes evidence for GitHub Copilot troubleshooting demand.
You've hit your global rate limit. Please upgrade your plan or wait for your limit to reset. (shown continuously 6+ hours with only 45.3% quota used) Enterprise user needs to understand how to properly enable billable premium requests with their GHCP license; searching for fix/workaround. Includes evidence for GitHub Copilot troubleshooting demand.
GHCP (GitHub Copilot for Business) licensed users cannot access billable premium requests — licensing conflict between enterprise seat license and individual paid tier after April 2026 pricing change. Users need to understand new token-based billing mechanics, estimate costs, and compare old vs. new pricing tiers. Includes evidence for GitHub Copilot troubleshooting demand.
Copilot transitions from flat-rate subscription to token/usage-based pricing, breaking existing mental models and budget planning for millions of paying users. User wants to understand why Copilot bill exploded and how to cap/control per-request costs under new usage-based pricing model. Includes evidence for GitHub Copilot troubleshooting demand.
Copilot usage-based billing spikes costs from $39/month flat-rate to hundreds or thousands of dollars; unexpected billing surges after April 27, 2026 migration to token-based pricing. After upgrading GitHub Copilot CLI to v1.0.51, the /remote on command shows a misleading admin-only error even when the user hasn't changed any org policies. Users need to re-enable or configure remote sessions. Includes evidence for GitHub Copilot troubleshooting demand.
Remote sessions are not enabled. Contact your organization administrator to enable remote sessions. (after updating to Copilot v1.0.51) Fix OAuth re-authentication failure in GitHub Copilot CLI MCP server when eager-startup OAuth flow conflicts with user-initiated re-auth Includes evidence for GitHub Copilot troubleshooting demand.
Authentication failed: MCPOAuthError: listen EADDRINUSE: address already in use 127.0.0.1:19878 Fix GitHub Copilot authentication failures across multiple editors (Neovim/copilot.vim, Zed) on macOS where auth endpoint returns malformed responses despite valid TLS Includes evidence for GitHub Copilot troubleshooting demand.
E-32603 Response content-type is missing (status=200); HTTP 200 response does not appear to originate from GitHub Restore GitHub Copilot agent mode functionality in VS Code/Visual Studio after breaking change from latest IDE update, where Copilot cannot edit files despite being enabled Includes evidence for GitHub Copilot troubleshooting demand.
GitHub Copilot agent mode in Visual Studio unable to edit any files after most recent Visual Studio update; previously worked without problems Users report that the OpenAI Codex desktop extension rapidly depletes token usage after an update — just 1–2 prompts drop usage by 1%. Users want to understand why tokens are consumed excessively and how to fix/prevent it Includes evidence for GitHub Copilot troubleshooting demand.
tokens burning very fast following extension update Debug misleading session auth error that actually stems from GitHub REST API quota (5000 req/hour) being hit during Copilot CLI token validation step Includes evidence for GitHub Copilot troubleshooting demand.
Execution failed: Error: Session was not created with authentication info or custom provider (caused by silent REST quota/rate-limit failures during token validation) Understand and fix GitHub Copilot Pro+ unexpected global rate limiting that blocks normal usage even below usage threshold Includes evidence for GitHub Copilot troubleshooting demand.
user_global_rate_limited:pro_plus — 429 Sorry, you've exceeded your rate limits 用户使用 GitHub Copilot 时首次尝试即被拒绝并收到 'API limit reached' 消息，影响付费订阅用户的正常使用体验 Includes evidence for GitHub Copilot troubleshooting demand.
"You've reached your API limit" on first try Restore working Copilot CLI sessions after version upgrade breaks session state, blocking paid Copilot Pro/Business developers from continued coding workflow Includes evidence for GitHub Copilot troubleshooting demand.
Sessions failed to resume and got corrupted after upgrading to 1.0.51-1 Continue through the full static archive for this hub. Every listed page is crawlable and keeps its existing canonical URL.