When we use the third-party library in the code, we need to include the code of the library in our program. If we forget to add the library code in the program, we get a syntax error. If we use the third party library with other libraries, we will get the error “The Token ‘&&’ is not a Valid Statement Separator in this version”.

Why dose this error happen?

Build tools are now an integral element of web development because of the increasing complexity of JavaScript applications. Bundlers help us bundle, compile and organize the various libraries and assets required for modern web projects.

Now, we will explore the Webpack whicha powerful open-source bundler, is being installed on your React project. And you attempt to install webpack with this command.

npm run build && node ./dist/main.js

However, the following issue is impeding your progress:

+ npm run build && node ./dist/main.js
+ ~~
The token '&&' is not a valid statement separator in this version.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : InvalidEndOfLine

How To Fix The Error “The token ‘&&’ is not a valid statement separator in this version”?

If you attempt to use this command in powershell, you will get this issue. Alternatively, try running it in CMD or git bash, or use the following command instead. Likewise, if this does not function in Windows PowerShell, divide the commands and run them individually.

Option 1: Include an empty constructor

If you attempt to use this command in powershell, you will get this issue. Alternatively, try running it in CMD or git bash.

Option 2: Use this 

Rather than trying, utilize the command below.

(npm run build) -and (node ./dist/main.js)

Option 3: Simply run them separately

If this does not function in Windows PowerShell, divide the commands and run them individually.

npm run build
node ./dist/main.js

Option 4: Windows PowerShell 

The most succinct

npm run build; if ($?) { node ./dist/main.js }

The mostrobust, (if the commands use2>redirections):

npm run build; if ($LASTEXITCODE -eq 0) { node ./dist/main.js }

Conclusion

We hope you enjoyed our blog post on how to solve the bug “The token ‘&&’ is not a valid statement separator in this version”. Please leave a comment if you have any further questions or concerns regarding this topic.

Thank you for taking the time to read; we are always delighted anytime one of our pieces can give important information on this topic!