I try build is giving closure-compiler error

[MustafaEminn]

Error:
`ERROR in dist.js:1735 (originally at E$/flutter/erste-demo/node_modules/erste/src/lib/base/component.js:132) from closure-compiler: @export cannot be used without including closure/base.js or other definition of goog.exportSymbol and goog.exportProperty
createdHooks(props) {}
^^^^^^^^^^^^

ERROR in dist.js:4081 (originally at E$/flutter/erste-demo/node_modules/erste/src/index.js:25) from closure-compiler: @export is not supported on this expression.
const erste = {`