Debug on device does not sync file changes

[NickIliev]

From @bnussey on February 3, 2017 20:16

When using debug mode on device (works as expected on emulator), it does not sync new files with the following error message:

Unable to sync files. Error is: Unable to kill the application.

This results in having to re-run the debug command
Here's full logs:

Executing before-prepare hook from /Users/blake/Documents/ns/app/hooks/before-prepare/nativescript-dev-typescript.js
Preparing project...
Project successfully prepared (iOS)
Executing after-prepare hook from /Users/blake/Documents/ns/app/hooks/after-prepare/nativescript-unit-test-runner.js
Transferring project files...
Successfully transferred asset-manager.models.js.
Successfully synced application com.stageme.app on device 1a33b375679bbb440fb6dbfcad31ea28bb1ed8af.

Frontend socket closed!
Unable to sync files. Error is: Unable to kill the application.

Copied from original issue: NativeScript/NativeScript#3575

[NickIliev]

From @mounirka on February 4, 2017 23:58

Hi @bnussey are you using the command tns run android ?

[NickIliev]

From @tsonevn on February 6, 2017 12:40

Hi @bnussey,

I reviewed your case, however, was unable to reproduce such a problem. Regard to that, could you provide some more info about your problem and exact steps, which you are following?
I tested your case tns run <platform_name>, which will automatically start livesync and it seems to work as expected.

Regards,
@tsonevn

[NickIliev]

From @bnussey on February 6, 2017 19:12

Hey all,

Sorry, left that key bit of information out. The command I use is tns run debug ios

[Plamen5kov]

@bnussey the possible commands are:

• tns run ios
• tns debug ios

There is no tns run debug ios

[bnussey]

Hey @Plamen5kov sorry im talking about tns debug ios

[Plamen5kov]

@bnussey I couldn't reproduce your project. What I did:

tns create cliapp && cd cliapp
tns debug ios
// change some files in main-view-model.js

[bnussey]

Did you do this specifically on the device @Plamen5kov ? it works fine on emulator, but not device.

[Plamen5kov]

@bnussey I managed to reproduce it once. Problem is, it might take some time to manage to find what the reason behind the crash is, since it isn't reproduced every time. I'm investigating further.

[bnussey]

Great thanks @Plamen5kov

[rosen-vladimirov]

Hey @bnussey , can you try CLI's @next version and see if the error is still reproducible?
Just install the next version via:

npm i -g nativescript@next

and try again.

I'm looking forward to hearing from you.

[pkoleva]

I can reproduce this on my machine with CLI version 3.0.0-2017.3.23.1

[bnussey]

Still getting this issue and able to reproduce it freely when on device...

[anuragd7]

Am getting this error with tns version 2.5.0 everytime I try tns run ios.

Interestingly though tns livesync ios works perfectly for the same project...!

Note - After a few successes - Now tns livesync ios is also not working!!

[bnussey]

Any updates on this? Still seems to be a problem.

[rosen-vladimirov]

@bnussey can you try CLI's @next version and see if the issue is still reproducible?
In order to install it, you should execute:

$ npm i -g nativescript@next

Thanks in advance for your help.

[bnussey]

Hey @rosen-vladimirov can report it fixes it.

[bnussey]

Hey @etabakov I am now getting this on run for the emulator:

Unable to sync files. Error is: Multiple errors were thrown:
Error Command failed: xcrun simctl launch 2006D8E4-F732-46D3-91E2-BB214E973318 com.stageme.app
An error was encountered processing the command (domain=FBSOpenApplicationServiceErrorDomain, code=3):
The request to open "com.stageme.app" failed.
The process did launch, but has since exited or crashed.
 while executing xcrun simctl launch 2006D8E4-F732-46D3-91E2-BB214E973318 

[bnussey]

Looks like it might be back...

Unable to sync files. Error is: Could not stop application