Android Question Maven artifact not found

Greg Conely

Licensed User
I have recently upgraded to the latest version of B4A

and opened an existing project to implement ads. I have gone through the instructions but continue to receive the following error. I have also tried running with a brand new blank app and get the same error as soon as I try to add the library to the project or attempt to build any project that has this library checked.

An error occurred.
Maven artifact not found:


What I have installed pretty much everything firebase in the SDK manager:

My paths setup:

I am running this on a Windows 10 machine, completely up to date.

Here is a copy of the log file from running b4a.exe -log

Build modules tree: 0
B4A version: 9.30
.Net version: 4.0.30319.42000
Ini folder: C:\Users\greg\AppData\Roaming\Anywhere Software\Basic4android
UDP server:, broadcast:
Java version: 11
Gui: 1008
Build modules tree: 0
Gui: 1014
Gui: 1000
File not found: Starter.bas
Build modules tree: 2
File not found: Starter.bas
File not found: Starter.bas
*** no reuse ***
*** no reuse ***
Gui: 128
Build modules tree: 3
Build modules tree: 0
*** no reuse ***
*** no reuse ***
Gui: 194
Build modules tree: 1
Gui: 199
ExitCode: 1
jarsigner: unable to open jar file: bin\temp.ap_


jarsigner: unable to open jar file: bin\temp.ap_

System.Exception: Maven artifact not found:
at hb.d(hc A_0, ICollection`1 A_1)
at ha.a(e6 A_0, Dictionary`2 A_1, ICollection`1 A_2)
at ha.a(e6 A_0, hh A_1)
at l.c()
at f0.a(Object A_0)
Compilation task: 183.9921

Any suggestions or ideas you have, please let me know.

Thanks - Greg


Last edited: