{ "extends": "@tsconfig/strictest/tsconfig.json", } 以上です! tsconfig.json ってどんなふうに書いていますか?? tsconfig.json をこんな感じで書いている人はいないでしょうか { "compilerOptions": { "strict": true, "allowUnusedLabels": false, "allowUnreachableCode": false, "exactOptionalPropertyTypes": true, "noFallthroughCasesInSwitch": true, "noImplicitOverride": true, "noImplicitReturns": true, "noPropertyAccessFromIndexSignature": true, "noU
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