In this article, we are going to learn about some common error we faced while developing and deploying the SPFx solution. There are several mistakes we make while working with the exsisting code, I will be sharing the solution to get rid from those errors. Error 1 : When you create a solution and run with the gulp everything seems fine but when you deploy the package to app catalog you see these errors : Component ID {0} exists in solution {1} already or Component ID {0} exists in solution {1} already. And having some correlation ID or A solution with the same product ID already exists. Please upload the file with the same name and replace the existing solution Solution: This error stated that you are using the solution with same id which is already deployed at your app catalog. You can change the Do the steps mentioned below: 1. Go to your solution, Under Config move to package-solution.json file and change the id. You need to replace the GUID...
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