Search Results for "error"
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Showing 2035 open source projects for "error"
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1
derive(Error)
derive(Error) for struct and enum error types
This is a Rust crate that provides a convenient derive macro (#[derive(Error)]) for implementing std::error::Error on your custom error types (structs or enums). The goal is to enable library authors to build expressive, typed error types, with readable Display implementations (via #[error("...")] annotations) as well as From conversions (#[from]), source tracking (#[source]), and optionally backtraces. It is designed so that switching from handwritten error implementation to using this error is not a breaking change: you retain the same API. ... -
2
Error Prone
Catch common Java mistakes as compile-time errors
...Using Error Prone to augment the compiler’s type analysis, you can catch more mistakes before they cost you time, or end up as bugs in production. We use Error Prone in Google’s Java build system to eliminate classes of serious bugs from entering our code, and we’ve open-sourced it, so you can too. -
3
react-error-boundary
Simple reusable React error boundary component
react-error-boundary is a tiny, well-tested utility that makes React’s error boundaries practical and ergonomic for everyday apps. It wraps React’s error-handling primitives in a single <ErrorBoundary> component with a predictable API for rendering fallbacks when descendant components throw during render, lifecycle, or event handlers. The library emphasizes recovery, not just failure: you can reset the error state programmatically or when certain “reset keys” change, returning the subtree to a healthy state without a full page refresh. ... -
4
koa-better-error-handler
A better error-handler for Lad and Koa. Makes `ctx.throw` awesome
Lad is the best Node.js framework. Made by a former Express TC and Koa team member. A better error-handler for Lad and Koa. Makes ctx.throw awesome (best used with koa-404-handler) Detects common programmer mistakes by detecting errors of TypeError, SyntaxError, ReferenceError, RangeError, URIError, and EvalError and yields generic "Internal Server Error" (only applies to production mode). -
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5
Anyhow
Flexible concrete Error type built on std::error::Error
This is a Rust library (crate) that provides a flexible, concrete error type built atop the standard std::error::Error trait. Its primary goal is to make error handling in applications easy: instead of defining lots of custom error types, you can use anyhow::Error (or the alias anyhow::Result<T>) for fallible functions. The crate supports attaching context to errors, so you can convert a low-level error (like “file not found”) into one with richer diagnostics (“Failed to read instructions from path X”) using .context() or .with_context(). ... -
6
Symfony ErrorHandler
Provides tools to manage errors and ease debugging PHP code
Symfony ErrorHandler is a component that handles and logs PHP errors and exceptions in a structured way. It replaces PHP's default error handling with a more user-friendly and informative system. The component provides detailed error pages for development environments while ensuring minimal disruption in production. It integrates seamlessly with Symfony applications and supports custom error pages. -
7
Pycorrector
Pycorrector is a toolkit for text error correction
Pycorrector is a Python toolkit for Chinese text error correction. It focuses on common error types such as similar-sounding characters, visually similar characters, grammar issues, proper noun errors, missing words, extra words, wrong words, and word-order problems. The project implements multiple correction approaches, including KenLM, ConvSeq2Seq, BERT, MacBERT, ELECTRA, ERNIE, GPT-style models, and newer Qwen-based correction models. -
8
Modern Errors
Handle errors in a simple, stable, consistent way
Handle errors in a simple, stable, consistent way. Exporting and documenting all error classes allows consumers to check them. This also enables sharing error classes between modules. Error properties that are internal or secret can be prefixed. This makes them non-enumerable, which prevents iterating or logging them. -
9
libtorrent
An efficient feature complete C++ bittorrent implementation
...The main class is the session, it contains the main loop that serves all torrents. Each class and function is described in this manual, you may want to have a look at the tutorial as well. If a torrent hits a disk write error, it will be put into upload mode. This means it will not download anything, but only upload. The assumption is that the write error is caused by a full disk or write permission errors. If the torrent is auto-managed, it will periodically be taken out of the upload mode, trying to write things to the disk again. -
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10
Exceptionless
Exceptionless application
The definition of the word exceptionless is: to be without exception. Exceptionless provides real-time error reporting for your JavaScript, Node, .NET Core, ASP.NET, Web API, WebForms, WPF, Console, and MVC apps. It organizes the gathered information into simple actionable data that will help your app become exceptionless. -
11
ErrorTracker
An Elixir-based built-in error reporting and tracking solution
An Elixir-based built-in error-tracking solution -
12
ResultTypes.jl
A Result type for Julia—it's like Nullables for Exceptions
ResultTypes provides a Result type that can hold either a value or an error. This allows us to return a value or an error in a type-stable manner without throwing an exception. -
13
soup
Web Scraper in Go, similar to BeautifulSoup
...Pointer containing the pointer to the current html node. NodeValue containing the current html node's value, i.e. the tag name for an ElementNode, or the text in case of a TextNode. Error containing an error in a struct if one occurs, else nil is returned. A detailed text explanation of the error can be accessed using the Error() function. A field Type in this struct of type ErrorType will denote the kind of error that took place. -
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error.html
ERR‑SCAN‑FREE
┌────────────────────────────────┐ │ ERROR.HTML – reFINAL STABLE │ └────────────────────────────────┘ MODUL: business● scan● refinal● free_nc● pro● soft● SCAN: version=last_stable free=kurz aktiv pro=voll soft=leicht read=tief near=ort+umfeld NCp FAIL: id=aktiv addr=ping ask="was will er" near="was liegt nah" hlp="was kann er" IKI-CUBE: (88)-(XX)-(69) ... -
15
Whoops
PHP errors for cool kids
...Beyond error pages, Whoops supports custom handlers, logging, and filtering so exceptions can be gracefully transformed or reported. Because it only activates in development by default, it avoids revealing internal application state in production. Developers use Whoops to shorten debugging cycles, reduce the frustration of tracing issues, and maintain cleaner error surfaces across applications. -
16
Mitiq
Mitiq is an open source toolkit for implementing error mitigation
Mitiq is a Python toolkit for implementing error mitigation techniques on quantum computers. Current quantum computers are noisy due to interactions with the environment, imperfect gate applications, state preparation and measurement errors, etc. Error mitigation seeks to reduce these effects at the software level by compiling quantum programs in clever ways. -
17
Errbit
The open source error catcher that's Airbrake API compliant
...It is Airbrake API compliant, so if you are already using Airbrake, you can just point the airbrake gem to your Errbit server. The way Errbit arranges notices into error groups is configurable. By default, Errbit uses the notice's error class, error message, complete backtrace, component (or controller), action and environment name to generate a unique fingerprint for every notice. Notices with identical fingerprints appear in the UI as different occurences of the same error and notices with differing fingerprints are displayed as separate errors. ... -
18
n8n-skills
n8n skillset for Claude Code to build flawless n8n workflows
n8n-skills is a Claude Code skill pack for building production-ready n8n workflows with the n8n-mcp MCP server. It gives AI assistants specialized guidance for n8n expression syntax, node configuration, workflow patterns, validation, error handling, binary data, sub-workflows, AI agents, Code nodes, and self-hosting. The project includes fourteen complementary skills plus a router and hook-based enforcement layer that surfaces the right guidance during workflow creation. It is designed to prevent common automation mistakes such as invalid expressions, broken node parameters, weak error handling, inefficient MCP usage, and validation loops. ... -
19
Measurements.jl
Error propagation calculator and library for physical measurements
Error propagation calculator and library for physical measurements. It supports real and complex numbers with uncertainty, arbitrary precision calculations, operations with arrays, and numerical integration. Physical measures are typically reported with an error, a quantification of the uncertainty of the accuracy of the measurement. Whenever you perform mathematical operations involving these quantities you have also to propagate the uncertainty, so that the resulting number will also have an attached error to quantify the confidence about its accuracy. ... -
20
Perspec
Scriptable desktop app to correct the perspective of images
...Any help to make it work on Microsoft (Ticket) would be greatly appreciated! Rescale image on viewport change. Handle JPEG rotation. Draw lines between corners to simplify guessing of clipped corners. Bundle Imagemagick. Better error if the wrong file format is dropped (images/error-message.jpg). Center Perspec window on screen. Drag'n'Drop for corner markers. "Submit" button. "Convert to Grayscale" button. Add support for custom output size (e.g. A4). Manual rotation buttons. Zoom view for corners. Label corner markers. -
21
Shelf
Web server middleware for Dart
...Flexibility to return a simple string or a byte stream with the same model. An adapter must handle all errors from the handler, including the handler returning a null response. It should print each error to the console if possible, then act as though the handler returned a 500 response. The adapter may include body data for the 500 response, but this body data must not include information about the error that occurred. This ensures that unexpected errors don't result in exposing internal information in production by default; if the user wants to return detailed error descriptions, they should explicitly include middleware to do so. -
22
Sentry PHP
The official PHP SDK for Sentry (sentry.io)
Sentry for PHP is a powerful error tracking library that helps developers identify, capture, and debug application issues in real time. It integrates seamlessly with PHP applications and frameworks like Laravel and Symfony, making it a go-to tool for production error monitoring. -
23
Webmozart Assert
Assertions to validate method input/output with nice error messages
...With these assertions, you can greatly reduce the amount of coding needed to write a safe implementation. This library is heavily inspired by Benjamin Eberlei's wonderful assert package, but fixes a usability issue with error messages that can't be fixed there without breaking backwards compatibility. This package features usable error messages by default. However, you can also easily write custom error messages. In beberlei/assert, the ordering of the %s placeholders is different for every assertion. This package, on the contrary, provides consistent placeholder ordering for all assertions. ... -
24
JSONViewer for Notepad++
A JSON viewer plugin for Notepad++
This plugin is meant to display a JSON string in a Treeview. It also marks the error position in case of parsing errors, and that's it. The plugin can be used in Notepad++. -
25
ozzo-validation
An idiomatic Go (golang) validation package
An idiomatic Go (golang) validation package. Supports configurable and extensible validation rules (validators) using normal language constructs instead of error-prone struct tags. Pozzo-validation is a Go package that provides configurable and extensible data validation capabilities. It has the following features. Use normal programming constructs rather than error-prone struct tags to specify how data should be validated. Can validate data of different types, e.g., structs, strings, byte slices, slices, maps, and arrays. ...
