tests/cases/conformance/es6/variableDeclarations/VariableDeclaration3_es6.ts(1,1): error TS1154: 'const' declarations are only available when targeting ECMAScript 6 and higher.
==== tests/cases/conformance/es6/variableDeclarations/VariableDeclaration3_es6.ts (1 errors) ====
const a = 1
~~~~~
!!! error TS1154: 'const' declarations are only available when targeting ECMAScript 6 and higher.