最近我的应用程序升级到了Angular 11。Jest已被设置为默认测试框架。运行npm测试会导致以下错误：

● Test suite failed to run

    TypeError: Jest: a transform must export a `process` function.

      20 | @Component({
      21 |     selector: 'app-bx-input-textbox',
    > 22 |     template: require('./bx-input-textbox.component.html'),
         |               ^
      23 |     styles: [String(require('./bx-input-textbox.component.scss'))],
      24 |     providers: [
      25 |         {

      at ScriptTransformer._getTransformer (node_modules/@jest/transform/build/ScriptTransformer.js:357:15)
      at ScriptTransformer.transformSource (node_modules/@jest/transform/build/ScriptTransformer.js:419:28)
      at ScriptTransformer._transformAndBuildScript (node_modules/@jest/transform/build/ScriptTransformer.js:523:40)
      at ScriptTransformer.transform (node_modules/@jest/transform/build/ScriptTransformer.js:579:25)
      at src/app/core/components/bx-input-textbox/bx-input-textbox.component.ts:22:15
      at Object.<anonymous> (src/app/core/components/bx-input-textbox/bx-input-textbox.component.ts:38:1)

//jest.config.js

module.exports = {
  testEnvironment: "jsdom",
  transform: {
    ".+\\.(css|styl|less|sass|scss)$": "<rootDir>/node_modules/jest-css-modules-transform",
    "\\.(ts|js)$": ['ts-jest']
  },
  setupFilesAfterEnv: ['./jest.setup.js'],
  globals: {    
    "ts-jest": {
      tsConfig: {
        // allow js in typescript
        allowJs: true,
      },
    },
  },
  // If you need to test a specifc file just include it here
  //testMatch: ['**/repository.jobs.spec.ts'],
  testMatch: []
};

包版本“@angular-builders/jest”：“12.1.0”，“@types/jest”：“24.9.1”，“ts-jest”：“26.0.0”，“jest”：“24.9.0”，
我尝试了不同的配置与jest.config.js文件，但无法解决此错误。任何解决此问题的建议都将有所帮助。