PhoneGap error on Android: "Server connection lost" and no data from LiveView

[josipradnik]

I followed "A guide to building Lianja Mobile business database Apps" to step 6.
Using Android phone and Lianja App Builder on Windows 10 laptop. Trying mobile demo apps only.
Steps:
1.WiFi set on router, on development Win10 machine and phone.
2.On Win10: Lianja App Builder | Projects | lianja_mobiledemo | lianja_mobiledemo (doubleclick) | Phone App View | LiveView
(Message:...is now runnung...connect to 192.168.5.10:3000)
3.On Android: PhoneGap | Server Address: 192.168.5.10:3000 | Connect
(Messages:...Downloading...Extracting...Success!.. .)
App header is showing with label captions and after "Loading..." or refreshing, an error:
"server connection lost
the server failed to respond"

Suspecting on Visual Studio I uninstalled once again (1) MS Visual Studio, (2) Lianja APaaS and (3) node.js additionally. Then installed Lianja again, no Visual Studio yet.

Interesting points, maybe relevant, maybe not:
1) According LiveView, Phonegap LiveView Server is running, but when I issue the commands in Command Window, regardless before LiveView or after LiveView, get always the same error:

cd "C:\Users\xxxx\AppData\Roaming\npm"
phonegap serve
[error] project directory could not be found

2) When I change app in Lianja App Builder, the PhoneGap on phone is automatically refreshing / reconnecting.
3) Trying to open the "example_pagecenter" on phone, only header+menu+arrows are shown, no 2 icons and no "Select a Page" title.
4) The Firewall is off, no VM involved.

What am I missing to get data from server displayed on my phone, as I get labels and headers?

Josip

[yvonne.milne]

Hi Josip,

Is your Lianja Server definitely running on your development machine?

Regards,

Yvonne

[josipradnik]

Yes, Lianja Server is definitely running on development machine.
On the bottom of Lianja Server Manager:

"Running - Lianja Server"

On top:

Green arrow icon, "Start/Continue" disabled, other buttons enabled.

Right now
0
active connections

Max connections: 50 (with licence information).

(in which occasion can I see this number "Right now" is ever changed? Is this live LCD?
This is only 1 digit place and I do not remember seeing anything but "0")
Truly, I rarely look it.

I did not change any setting of Lianja Server and Windows Firewall is turned off.

Josip

[yvonne.milne]

Hi Josip,

Yes, the number updates to show the active connections.

Can you connect to http://192.168.5.10:8001 in your phone's browser and run the Apps?

Regards,

Yvonne

[josipradnik]

Hi Yvonne,

I can connect from phone's Chrome to this IP address (:8001)
and after log in (admin/admin) get Lianja App Center with 3 tiny :-) known app icons.

Running them I get data and everything is looking fine. I am impressed viewing Lianja for the first time on my phone.
I checked Lianja Server Manager: 6 active connections (expected 1 although: suddenly these 50 does not seam too many anymore).

Immediately, I tried PhoneGap again (:3000) but no avail.
I feel we are almost there.

Josip

[barrymavin]

For anyone interested in this thread. These issues were resolved on tickets.

[Wintz]

Hi Barry,
I am facing the same problem. Preview mode works well.
In LiveView mode: the mobile device shows the UI screen, thereafter shows "loading" for 5 mins, then pops "Server Connection lost". Hence, the UI shows a combobox that is not populated and also a non-working commandbox ...

Anybody can point me towards the right direction to troubleshoot? Thkq

[Wintz]

I found the solution here https://lianjadeveloper.wordpress.co...21/phonegap-4/
Turn off the firewall and it works.
Hope it helps others. Good day

[josipradnik]

Hi Wintz,

Instead of turning Firewall off, enable the port for PhoneGap in your Firewall.
On Win10 you need new Outbound Rule (private)



You set port 8001



And Inbound Rule too:





Josip

[pauln]

Thanks guys for sharing the Information!
So important to document in the forum any "tricks" or "smarts"...
Appreciate it