EC
TS90001
TypeScriptERRORNotableConfigHIGH confidence

Add missing 'super()' call

Production Risk

Build will fail; resolve before shipping.

What this means

A TypeScript diagnostic (TS90001): Add missing 'super()' call. This diagnostic is emitted by the TypeScript compiler when add missing 'super()' call.

Why it happens
  1. 1Incorrect TypeScript syntax or type usage
  2. 2Type mismatch between declared and actual value
How to reproduce

TypeScript compiler reports TS90001 during type checking.

trigger — this will error
trigger — this will error
// Triggers TS90001
// Add missing 'super()' call

expected output

error TS90001: Add missing 'super()' call

Fix

Fix the tsconfig.json option

WHEN When a compiler option is invalid or missing

Fix the tsconfig.json option
// tsconfig.json
{
  "compilerOptions": {
    // Review and correct the flagged option
  }
}
// Run: npx tsc --showConfig to see effective config

Why this works

TypeScript validates tsconfig.json options; check the official tsconfig reference for valid values.

Sources
Official documentation ↗

TypeScript Compiler Diagnostics

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