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Version: 1.x

Class: NavigationError

Error subclass for FLP/route navigation failures.

Example​

const error = new NavigationError({
  message: 'Route failed',
  attempted: 'Navigate to app',
});

Sap Module​

FLP

Browser Context​

Requires active browser with FLP loaded

Failure Mode​

Tile not found — semantic object or action not available in FLP

Failure Mode​

Route failed — hash-based navigation did not resolve to a valid view

Failure Mode​

Timeout — navigation did not complete within configured timeout

Extends​

Constructors​

Constructor​

new NavigationError(options): NavigationError

Creates a new NavigationError instance.

Parameters​

options​

NavigationErrorOptions

Navigation error construction options including target and current URLs for diagnostic context.

Returns​

NavigationError

Example​

import { NavigationError } from '#core/errors/navigation-error.js';

const error = new NavigationError({
  message: 'FLP tile not found',
  attempted: 'Navigate to Purchase Order app',
  targetUrl: 'https://sap.example.com/app/po',
  currentUrl: 'https://sap.example.com/flp',
});

Overrides​

PramanError.constructor

Properties​

attempted​

readonly attempted: string

Inherited from​

PramanError.attempted

cause?​

optional cause?: unknown

Inherited from​

PramanError.cause

code​

readonly code: ErrorCode

Inherited from​

PramanError.code

currentUrl​

readonly currentUrl: string | undefined

details​

readonly details: Readonly<Record<string, unknown>>

Inherited from​

PramanError.details

message​

message: string

Inherited from​

PramanError.message

name​

name: string

Inherited from​

PramanError.name

retryable​

readonly retryable: boolean

Inherited from​

PramanError.retryable

severity​

readonly severity: "error" | "info" | "warning"

Inherited from​

PramanError.severity

stack?​

optional stack?: string

Inherited from​

PramanError.stack

suggestions​

readonly suggestions: readonly string[]

Inherited from​

PramanError.suggestions

targetUrl​

readonly targetUrl: string | undefined

timestamp​

readonly timestamp: string

Inherited from​

PramanError.timestamp

stackTraceLimit​

static stackTraceLimit: number

The Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)).

The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed.

If set to a non-number value, or set to a negative number, stack traces will not capture any frames.

Inherited from​

PramanError.stackTraceLimit

Methods​

toAIContext()​

toAIContext(): AIErrorContext & object

Returns AI-agent-friendly context with navigation-specific diagnostic fields.

Returns​

AIErrorContext & object

Base AI context extended with target and current URL details.

Example​

const ctx = error.toAIContext();
// LLM can compare ctx.targetUrl and ctx.currentUrl to diagnose
// whether navigation started but resolved to the wrong view

Overrides​

PramanError.toAIContext

toJSON()​

toJSON(): SerializedPramanError & object

Serializes this error to a JSON-safe object with navigation-specific fields.

Returns​

SerializedPramanError & object

Base serialization extended with targetUrl and currentUrl.

Example​

const json = error.toJSON();
console.log(json.targetUrl);  // 'https://sap.example.com/app/po'
console.log(json.currentUrl); // 'https://sap.example.com/flp'

Overrides​

PramanError.toJSON

toUserMessage()​

toUserMessage(): string

Formats the error for human-readable console output.

Returns​

string

Multi-line formatted string with all diagnostic sections.

Example​

console.error(error.toUserMessage());

Inherited from​

PramanError.toUserMessage

captureStackTrace()​

static captureStackTrace(targetObject, constructorOpt?): void

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters​

targetObject​

object

constructorOpt?​

Function

Returns​

void

Inherited from​

PramanError.captureStackTrace

prepareStackTrace()​

static prepareStackTrace(err, stackTraces): any

Parameters​

err​

Error

stackTraces​

CallSite[]

Returns​

any

See​

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from​

PramanError.prepareStackTrace