ReferenceError: regeneratorRuntime is not defined

[xavier506]

FAIL src/App.test.js
  ● Test suite failed to run

    ReferenceError: regeneratorRuntime is not defined

      2 | import { Anchor } from 'ual-anchor'
      3 | // import { Scatter } from 'ual-scatter'
    > 4 | import { Ledger } from 'ual-ledger'
        | ^
      5 | import { Lynx } from 'ual-lynx'
      6 | import { Metamask } from 'ual-metamask'
      7 | import { MeetOne } from 'ual-meetone'

      at node_modules/@ledgerhq/hw-transport-u2f/lib/TransportU2F.js:123:50
      at node_modules/@ledgerhq/hw-transport-u2f/lib/TransportU2F.js:145:6
      at Object.<anonymous> (node_modules/@ledgerhq/hw-transport-u2f/lib/TransportU2F.js:246:2)
      at Object.<anonymous> (node_modules/eosjs-ledger-signature-provider/src/LedgerUtils.ts:1:1)
      at Object.<anonymous> (node_modules/eosjs-ledger-signature-provider/src/LedgerAPI.ts:4:1)
      at Object.<anonymous> (node_modules/eosjs-ledger-signature-provider/src/SignatureProvider.ts:2:1)
      at Object.<anonymous> (node_modules/eosjs-ledger-signature-provider/src/index.ts:1:1)
      at Object.<anonymous> (node_modules/ual-ledger/dist/LedgerUser.js:14:43)
      at Object.<anonymous> (node_modules/ual-ledger/dist/Ledger.js:17:22)
      at Object.<anonymous> (node_modules/ual-ledger/dist/index.js:13:14)
      at Object.<anonymous> (src/config/ual.config.js:4:1)
      at Object.<anonymous> (src/config/index.js:3:1)
      at Object.<anonymous> (src/routes/index.js:13:1)
      at Object.<anonymous> (src/app.js:9:1)
      at Object.<anonymous> (src/App.test.js:4:1)

Test Suites: 1 failed, 1 total