Cannot compile ionic project with version 1.0.2/1.0.1

[webfrank]

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 6
Enum type 'Mode' has members with initializers that are not literals.

   L5:  export interface ByteChunk {
   L6:      type: Mode.Byte | Mode.Kanji;
   L7:      bytes: number[];

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 6
Enum type 'Mode' has members with initializers that are not literals.

   L5:  export interface ByteChunk {
   L6:      type: Mode.Byte | Mode.Kanji;
   L7:      bytes: number[];

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 16
In ambient enum declarations member initializer must be constant expression.

  L15:  export declare enum Mode {
  L16:      Numeric = "numeric",
  L17:      Alphanumeric = "alphanumeric",

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 17
In ambient enum declarations member initializer must be constant expression.

  L16:  Numeric = "numeric",
  L17:  Alphanumeric = "alphanumeric",
  L18:  Byte = "byte",

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 18
In ambient enum declarations member initializer must be constant expression.

  L17:  Alphanumeric = "alphanumeric",
  L18:  Byte = "byte",
  L19:  Kanji = "kanji",

[17:23:31] typescript: node_modules/jsqr/dist/decoder/decodeData/index.d.ts, line: 19
In ambient enum declarations member initializer must be constant expression.

  L18:      Byte = "byte",
  L19:      Kanji = "kanji",

[cozmo]

Quick question - What version of typescript are you using?

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2.3 and cannot upgrade at this moment

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Same error with 1.0.3 and I can confirm it happens with transpile enabled (production mode)

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I managed to upgrade Ionic to use Typescript 2.4.2 and now it compiles without error. Probably worth to mention the package requires typescript >= 2.4