File Is Not Included In Any Tsconfig.json -

Move the problematic file into an already-included directory:

"typescript.tsserver.experimental.enableProjectDiagnostics": true, "typescript.tsserver.maxTsServerMemory": 4096 file is not included in any tsconfig.json

# Instead of: project/tool.ts # Move to: project/src/tool.ts mv tool.ts src/ Common include patterns: "include": [ "src/**/*.ts", // All TS files in src "src/**/*.tsx", // React TSX files "test/**/*.spec.ts", // Test files "config/*.ts" // Root config files ] // React TSX files "test/**/*.spec.ts"