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error codes

28 articles · Page 1 of 1
HarmonyOS Developer Technology
HarmonyOS Developer Technology
Aug 10, 2026 · Mobile Development

HarmonyOS Compilation Troubleshooting: Log Levels, Error Codes & Debug Workflow for ArkTS

This guide teaches HarmonyOS developers to troubleshoot ArkTS compilation errors using log levels (ERROR/WARN/INFO/DEBUG), error code navigation via official documentation, common error patterns (syntax, imports, memory), and advanced techniques like debug-mode configuration, cache cleaning, and vendor version checks.

ArkTSHarmonyOSHvigor
0 likes · 8 min read
HarmonyOS Compilation Troubleshooting: Log Levels, Error Codes & Debug Workflow for ArkTS
MaGe Linux Operations
MaGe Linux Operations
Jul 14, 2026 · Databases

Common MySQL Connection Errors and Step‑by‑Step Troubleshooting Guide

MySQL connection failures are among the most frequent issues for developers and operators; this article systematically walks through typical error messages, explains how to collect relevant information, runs layered command checks, analyzes evidence, identifies root causes such as socket problems, bind‑address limits, host whitelist mismatches, authentication failures, connection‑limit exhaustion, and packet timeouts, and provides concrete fix and verification procedures for on‑premise, Docker, and Kubernetes deployments.

DockerKubernetesLinux
0 likes · 25 min read
Common MySQL Connection Errors and Step‑by‑Step Troubleshooting Guide
Java Captain
Java Captain
Jul 4, 2025 · Operations

How to Successfully Unlock a Restricted WeChat Account: Step‑by‑Step Guide

This comprehensive guide explains WeChat's risk‑control logic, details every step from detecting a restriction to completing the unblocking process, decodes common error codes, provides appeal material templates, and offers post‑unblock prevention tips to help users reliably restore their accounts.

WeChataccount recoveryappeal guide
0 likes · 8 min read
How to Successfully Unlock a Restricted WeChat Account: Step‑by‑Step Guide
Architect's Tech Stack
Architect's Tech Stack
Apr 15, 2025 · Backend Development

The Chaotic Evolution of API Design: From Early AJAX to Post‑Restful Practices

This article narrates the messy history of API design, illustrating early AJAX conventions, the misuse of HTTP status codes, the challenges of maintaining Restful standards, ad‑hoc extensions, and the eventual abandonment of Restful in favor of a simplified POST‑centric approach, while highlighting practical lessons for backend developers.

APIBackendDesign
0 likes · 6 min read
The Chaotic Evolution of API Design: From Early AJAX to Post‑Restful Practices
JD Tech
JD Tech
Jan 2, 2025 · Backend Development

Designing Effective API Error Codes and Their Propagation in Complex Systems

This article explains the importance of well‑designed API and database structures, outlines principles for creating clear and traceable error codes, provides response format examples, discusses error propagation strategies, highlights common pitfalls, and proposes a full‑link trace‑id logging system for backend services.

API Designerror codessystem architecture
0 likes · 15 min read
Designing Effective API Error Codes and Their Propagation in Complex Systems
DevOps Operations Practice
DevOps Operations Practice
Jul 21, 2024 · Fundamentals

Global Windows Blue Screen Incident Triggered by CrowdStrike Update: Technical Analysis and Common Causes

A worldwide Windows blue‑screen outage was caused by a CrowdStrike Falcon update that introduced a bug, leading to system crashes across many industries, and the article explains the incident, its impact, a temporary fix, and the typical technical reasons behind blue‑screen errors.

Blue ScreenCrowdStrikeOS fundamentals
0 likes · 6 min read
Global Windows Blue Screen Incident Triggered by CrowdStrike Update: Technical Analysis and Common Causes
Ops Development & AI Practice
Ops Development & AI Practice
Apr 11, 2024 · Backend Development

Mastering Error Codes: Best Practices for Clear, Scalable Error Handling

This article outlines practical guidelines for designing systematic error codes and user‑friendly messages, covering classification, templating, dynamic generation, documentation, automation, and references to open‑source specifications such as HTTP, gRPC, Microsoft REST, Google JSON, and Linux errno.

Best Practiceserror codeserror handling
0 likes · 14 min read
Mastering Error Codes: Best Practices for Clear, Scalable Error Handling
Tencent Cloud Developer
Tencent Cloud Developer
Dec 19, 2023 · Fundamentals

Object-Oriented Analysis and Design: Exception Handling, RAII, and Error‑Code Practices

The article explains how object‑oriented analysis and design should treat exceptions by using RAII for automatic resource cleanup, avoiding error‑code patterns, and adopting a throw‑by‑default policy with strongly‑typed exceptions, illustrating concepts with C++ and VB.NET examples and framework design recommendations.

C++Object-Oriented DesignRAII
0 likes · 38 min read
Object-Oriented Analysis and Design: Exception Handling, RAII, and Error‑Code Practices
21CTO
21CTO
Nov 29, 2023 · Backend Development

Designing Clear API Error Codes: Lessons from HTTP Status Practices

This article explains how to design consistent API error codes and messages by borrowing the structured approach of HTTP status codes, covering code segmentation, personalized messages, and unified monitoring to improve developer communication and reduce maintenance overhead.

API Designerror codeshttp status
0 likes · 5 min read
Designing Clear API Error Codes: Lessons from HTTP Status Practices
Top Architect
Top Architect
May 30, 2023 · Backend Development

Designing API Error Codes and Messages: Best Practices and Standardization

This article explains how to design clear, consistent API error codes and messages by referencing HTTP status code segmentation, defining code‑message pairs, customizing user‑friendly messages, and centralizing handling to improve communication, debugging, and monitoring for backend services.

API DesignBackenderror codes
0 likes · 6 min read
Designing API Error Codes and Messages: Best Practices and Standardization
Top Architect
Top Architect
Jun 22, 2022 · Backend Development

Designing API Error Codes and Messages: Best Practices

This article explains how to design clear and consistent API error codes and messages by borrowing the segmentation logic of HTTP status codes, defining code‑message pairs, providing personalized user‑facing messages, and centralizing handling for monitoring and alerting, ultimately reducing communication and maintenance costs.

API Designerror codeshttp status
0 likes · 6 min read
Designing API Error Codes and Messages: Best Practices
Top Architect
Top Architect
May 26, 2022 · Backend Development

Designing API Return Codes and Messages: Best Practices for Backend Services

This article explains how to design clear, consistent API return codes and messages by referencing HTTP status codes, defining code‑message pairs, supporting personalized messages for different clients, and using unified handling for monitoring and alerting, ultimately improving communication and maintenance costs.

API DesignHTTP status codeserror codes
0 likes · 6 min read
Designing API Return Codes and Messages: Best Practices for Backend Services
Architecture Digest
Architecture Digest
Jan 27, 2022 · Backend Development

Designing API Error Codes and Result Codes: Best Practices

This article explains why a well‑designed API error‑code system—using consistent numeric or string codes, clear messages, HTTP‑status‑like segmentation, personalized user messages, and unified handling for monitoring—reduces communication overhead, simplifies maintenance, and improves overall backend reliability.

API Designerror codeshttp status
0 likes · 6 min read
Designing API Error Codes and Result Codes: Best Practices
Architect
Architect
Jan 23, 2022 · Backend Development

Designing Consistent API Return Codes: Lessons from HTTP Status Codes

The article explains why a well‑designed API return‑code system—modeled after HTTP status codes, with clear numeric ranges, descriptive messages, and personalized user messages—reduces communication overhead, simplifies maintenance, and enables effective monitoring and alerting for backend services.

API DesignHTTP status codesbackend development
0 likes · 6 min read
Designing Consistent API Return Codes: Lessons from HTTP Status Codes
Top Architect
Top Architect
Oct 26, 2021 · Backend Development

Designing API Error Codes and Result Codes: Best Practices

This article explains how to design clear and consistent API error and result codes, using HTTP status code concepts, parameter conventions, personalized messages, and unified handling to improve communication, reduce maintenance costs, and enable effective monitoring and alerting for backend services.

Backenderror codeshttp status
0 likes · 5 min read
Designing API Error Codes and Result Codes: Best Practices
JD Retail Technology
JD Retail Technology
Aug 19, 2020 · Backend Development

Understanding Exception Handling: Strategies and Best Practices for Different System Types

This article explains the complexities of exception handling across various backend scenarios—such as message queues, RPC services, mobile and PC clients—offering practical guidelines on when to catch, rethrow, use error codes, or employ alternatives like Java Optional to improve code clarity and system reliability.

Best PracticesJavaerror codes
0 likes · 7 min read
Understanding Exception Handling: Strategies and Best Practices for Different System Types
Aotu Lab
Aotu Lab
Jul 22, 2020 · Frontend Development

From Vue RFCs to Cloud Gaming: Cutting-Edge Tech Insights You Can’t Miss

This newsletter blends deep dives into Vue 3 RFC processes, cloud‑gaming opportunities, robust error‑code design, AI‑driven SQLFlow and Pipcook tools, plus handy regex and FIGlet utilities, offering developers practical knowledge across front‑end, back‑end, and emerging technologies.

AIToolserror codes
0 likes · 7 min read
From Vue RFCs to Cloud Gaming: Cutting-Edge Tech Insights You Can’t Miss
Alibaba Cloud Developer
Alibaba Cloud Developer
Jun 29, 2020 · Backend Development

Designing Effective Error Codes: Principles, Standards, and Best Practices

This article explores the principles and practical guidelines for designing error codes, comparing log‑oriented and external‑facing standards, analyzing numeric versus alphanumeric formats, and presenting recommended structures to improve traceability, memorability, and cross‑team communication in modern backend systems.

API DesignStandardizationerror codes
0 likes · 12 min read
Designing Effective Error Codes: Principles, Standards, and Best Practices
Programmer DD
Programmer DD
Apr 30, 2020 · Backend Development

What’s New in Alibaba’s Java Manual? 3 Key Coding Standards Revealed

The April 22 release of Alibaba’s Java Development Manual “Taishan” edition introduces five mandatory date‑time rules, two table‑alias SQL conventions, and a unified error‑code standard, all aimed at improving code consistency and reliability across backend projects.

JavaSQL aliasbackend development
0 likes · 6 min read
What’s New in Alibaba’s Java Manual? 3 Key Coding Standards Revealed
Amap Tech
Amap Tech
Apr 24, 2020 · Backend Development

Introducing the Java Development Manual (Taishan Edition): Unified Error Codes, Leap‑Year Pitfalls, SQL Alias, Code‑Style Tips, and Ternary‑Operator NPE Issues

The new Java Development Manual (Taishan Edition) adds 34 rules and revises 90 descriptions, introduces a unified five‑character error‑code scheme, warns about stream‑toMap and ternary‑operator null‑pointer traps, highlights leap‑year and SQL alias bugs, and recommends readability tweaks such as blank lines after returns.

BackendCode styleJava
0 likes · 8 min read
Introducing the Java Development Manual (Taishan Edition): Unified Error Codes, Leap‑Year Pitfalls, SQL Alias, Code‑Style Tips, and Ternary‑Operator NPE Issues
Hujiang Technology
Hujiang Technology
Jun 20, 2017 · Backend Development

Design and Management of a Unified Error Code System for Distributed Backend Services

This article explains the concept, benefits, and implementation details of a unified error‑code management platform, covering code allocation, handling strategies in microservice architectures, API security considerations, and performance optimizations to reduce development friction and improve system reliability.

API Designerror codesmicroservices
0 likes · 12 min read
Design and Management of a Unified Error Code System for Distributed Backend Services
dbaplus Community
dbaplus Community
Dec 22, 2015 · Databases

How to Diagnose and Fix Common Oracle Listener Errors

This article details seven common Oracle Listener issues—including intermittent connections, process crashes, ORA-12514, SCAN registration failures, listener hangs, TNS-12535/00505 errors, and TNS-12547 lost-contact—explaining symptoms, root causes, and step-by-step remediation commands for DBA teams.

OracleTNSerror codes
0 likes · 10 min read
How to Diagnose and Fix Common Oracle Listener Errors