rebuild with ng serve is not reliable

[manuel-mauky]

I'm using ng serve to get instant feedback while I'm developing but in some (unknown) situations the rebuilding isn't reliable. Sometimes I'm getting compile errors that I've already fixed. If I restart ng serve then the errors don't show up anymore.
This worsens developer productivity a lot because I spend time to find an error in my code that doesn't exist anymore until I remember to restart the build command.

OS?

Windows 8

Versions.

$ ng --version
@angular/cli: 1.0.0-rc.1
node: 7.1.0
os: win32 x64

Repro steps.

App was created using the CLI. I'm not able to reliable reproduce the problem. It sometimes happens and sometimes not.
However, these are the steps I'm doing:

1. ng serve
2. write some code and rebuilding works fine
3. write an error in the code that produces a compile error
4. fix the code
5. The code is rebuild as expected but the compile error still shows up.
6. kill ng serve and restart it
7. The code compiles just fine.

The log given by the failure.

No specific error message.

Mention any other details that might be useful.

I've used version 1.0.0-beta.24 for a long time without such problems. Only after I updated to 1.0.0-rc.1 the problem started to occur.

[raularagonez]

I'm also having issues with 1.0.0-rc.1, I want to see the diffs but I don't see a release for it https://github.com/angular/angular-cli/releases. 1.0.0-rc.0 is works fine.

[BobBDE]

Hi,

I have the same problem since 1.0.0-rc.1.
But for me it appear (amost everytime) when I create/modify or delete an interface.

For exemple if I create a new interface (after the ng serve being launch), I have an error on the compilation, that says that the interface does not exsit. To fixe it I need to restart the ng serve.

[rainstormza]

beta 32.3
happened to me too
when I try import library pdfmake

sometime error appear after I save the same code again , don't know why

[JFrankfurt]

Happens to me in beta-26

[AntiCZ]

I have same problem with 1.0.0-rc.0

[vaags]

I can confirm that changes in interfaces are not picked up automatically in 1.0.0-rc.0, meaning I have to re-run "ng serve" manually whenever I change an interface.

[icepeng]

Sometimes, when I save interface file on editor, compile errors are gone. But after saving other files, error occurs again.

[geoffgb]

Having the same or similar issue as the op. Changes to html and css files seem to get detected and update just fine but changes to classes, components, or interfaces get detected but the the in memory build doesn't seem to get updated from time to time until I fully restart ng serve.

$ ng --version
@angular/cli: 1.0.0-rc.1
node: 7.1.0
os: win32 x64