I am new to shopify app development. I‘m following this guide (the link https://shopify.dev/apps/checkout/custom-fields/getting-started ). I'm stuck in this step "Integrating Checkout UI Extension".I have already done all the steps the guide introduc...

I have just fixed this issue. Because your name of app is conflict with Shopify certain modules. so your app's name was set blank .It cause to show an error . you cannot use link like "http://127.0.0.1:51567" etc. you should use the link https://xxxx...

I had the same problem . need helps!