Cannot find module --mountGraphQL

Hi,

I tried to run the parse-server using the following commands

$ npm install -g parse-server mongodb-runner

$ mongodb-runner start

$ parse-server --appId DemoAppOne --masterKey 7828283 --databaseURI mongodb://127.0.0.1:27017/DemoAppOne —-mountGraphQL

But, I am receiving the following error

internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module '/root/—-mountGraphQL'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at parseConfigFile (/usr/lib/node_modules/parse-server/lib/cli/utils/commander.js:93:24)
    at Command._commander.Command.parse (/usr/lib/node_modules/parse-server/lib/cli/utils/commander.js:139:20)
    at _default (/usr/lib/node_modules/parse-server/lib/cli/utils/runner.js:57:22)
    at Object.<anonymous> (/usr/lib/node_modules/parse-server/lib/cli/parse-server.js:38:21)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)

npm --version -> 6.14.5