角度版本升级出现 404 错误（v5 到 v6）

Question

We are trying to upgrade our angular application(v5) to latest and we tried to follow step listed on https://update.angular.io/ . We are taking step by step version upgrade for it ie v5->v6-> v7....

We followed following step while upgrading from v5 to v6

1. Remove old angular cli and install angular cli v6 globally

    npm install -g @angular/cli@6

2. Install the angular cli v6 locally

    npm install @angular/cli@6

Looking into other online resources, at this point we supposed to get the warning message but we have not got any.

3. update angular cli

    ng update @angular/cli

Step 3 is giving different 404 error each time we run it like

• 404 Not Found: codelyzer
• 404 Not found extract-textwebpack-plugin
• ...

I checked all packages that is throwing 404 error and all those packages does exist on dev dependency part. can someone assist me what step I am missing here or any extra package I need to install to make it work?

Answer 1

If you check the documentation here you can see that you need to specify version 6 and not try to update to the latest version ( https://update.angular.io/?l=2&v=5.0-6.0 )

At step 3 do this: ng update @angular/cli@6