Cannot find module '#cypress/code-coverage/task' - cypress

Question

I'm using cypress to automate browserstack, I try to automate from local first, but when I npx browserstack-cypress run –sync, there's error:
error: Cypress could not run any of the specs in the build since an exception occurred. The stacktrace of the error is given below:
---------------------------------------------------------------------------------------------
Your pluginsFile threw an error from: .\tests\e2e\plugins\index.js
Error: Cannot find module '#cypress/code-coverage/task'
Require stack:
- .\tests\e2e\plugins\index.js
- \cypress_package\9.6.1\app\packages\server\lib\plugins\child\run_plugins.js
- \cypress_package\9.6.1\app\packages\server\lib\plugins\child\index.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
at Function.Module._load (internal/modules/cjs/loader.js:746:27)
at Module.require (internal/modules/cjs/loader.js:974:19)
at require (internal/modules/cjs/helpers.js:101:18)
at module.exports (.\tests\e2e\plugins\index.js:17:14)
at \cypress_package\9.6.1\app\packages\server\lib\plugins\child\run_plugins.js:94:12
at tryCatcher (\cypress_package\9.6.1\node_modules\bluebird\js\release\util.js:16:23)
at Function.Promise.attempt.Promise.try (\cypress_package\9.6.1\node_modules\bluebird\js\release\method.js:39:29)
at load (\cypress_package\9.6.1\app\packages\server\lib\plugins\child\run_plugins.js:91:7)
at EventEmitter.<anonymous> (\cypress_package\9.6.1\app\packages\server\lib\plugins\child\run_plugins.js:209:5)
at EventEmitter.emit (events.js:400:28)
at process.<anonymous> (\cypress_package\9.6.1\app\packages\server\lib\plugins\util.js:19:22)
at process.emit (events.js:400:28)
at emit (internal/child_process.js:912:12)
at processTicksAndRejections (internal/process/task_queues.js:83:21)
cypress run process exited with code 1
cypress run failed, exiting with code: 1
And here is my code:
./browserstack.json
{
"auth": {
"username": "XXXX",
"access_key": "XXXX"
},
"browsers": [
{
"browser": "chrome",
"os": "Windows 10",
"versions": [
"latest",
"latest-1"
]
}
],
"run_settings": {
"cypress_config_file": "./cypress.json",
"project_name": "project-name",
"build_name": "build-name",
"exclude": [],
"parallels": 5,
"npm_dependencies": {},
"package_config_options": {},
"headless": true,
"spec_timeout": 10
},
"connection_settings": {
"local": false,
"local_identifier": null,
"local_mode": null,
"local_config_file": null
},
"disable_usage_reporting": false
}
./cypress.json
{
"pluginsFile": "tests/e2e/plugins/index.js",
"viewportWidth": 1280,
"viewportHeight": 800
}
./tests/e2e/plugins/index.js
module.exports = (on, config) => {
on("task", require("#cypress/code-coverage/task"));
on("file:preprocessor", require("#cypress/code-coverage/use-browserify-istanbul"));
return Object.assign({}, config, {
fixturesFolder: "tests/e2e/fixtures",
integrationFolder: "tests/e2e/specs",
screenshotsFolder: "tests/e2e/screenshots",
videosFolder: "tests/e2e/videos",
supportFile: "tests/e2e/support/index.js"
});
};
./tests/e2e/support/index.js
import '#cypress/code-coverage/support'; // I DO import code-coverage here
import "./commands";
require('cypress-xpath');
If I delete pluginsFile in cypress.json, and add test in ./cypress/integration, then everything will be just find.
I don't know that I did anything wrong, please help, thanks.