hi, i can’t preview my app on an android emulator. it outputs error Fatal E6101
Hi, can you provide some more info on your setup, such as:
- Does the app work on real android devices?
- Does this happen for all apps or just one in particular?
- Which android emulator are you using and how is it configured (OS version etc…) ?
Please note that we in general don’t prioritize Android emulators when testing and developing Fuse, mainly because it’s very easy to test on real devices (as well as local preview for things that don’t rely on mobile platform features).
i don’t understand how to make my app work on real android device.
i want to use the emulator installed from fuse install command.
Documentation on how to use real devices is provided here: https://www.fusetools.com/docs/basics/preview-and-export
If you can provide the other info I requested we will still try to look into the issue. 
c:\sdc-live\build\Android\Preview\cache\ux11\MainView.g.uno(69,93,69,125): Warni
ng W0000: Absolute path C:/sdc-live/Assets/concert.mp4. In Uno, paths should be
relative to specifying file
(16.6s)
Generating code and data (2:6)
C:\Users\Emenike pc\AppData\Local\Fusetools\Fuse\App\app-0.28.1.8199\Packages\Un
oCore\0.39.1\targets\android\@(Project.Name)\app\build.gradle(1.1): FATAL E6101:
Object reference not set to an instance of an object.
C:\Users\Emenike pc\AppData\Local\Fusetools\Fuse\App\app-0.28.1.8199\Packages\Un
oCore\0.39.1\targets\android\@(Project.Name)\app\build.gradle(1,2): FatalError E
6101: Object reference not set to an instance of an object.
Build ended
fuse: Failed to compile project
FATAL E6101: Object reference not set to an instance of an object.
fuse: Errors were encountered while building the project
This error occurs because the space in your username Emenike pc causes problems for the Android NDK. It is not related to the emulator in any way.
We have added a fix for this in the latest Fuse release (still on the QA channel, here).
If you download this and then build with Gradle fuse build -tandroid -DGRADLE or fuse preview -tandroid -DGRADLE it should work.
how do i upgrade from fuse 0.28 to fuse 0.29?
You download the installer from here
i have downloaded it. do i need to uninstall fuse 0.28 first?
No, the installer will take care of that.
ok. thanks let me try
i got this error while trying to preview on my emulator
fuse preview -tandroid -DGRADLE
Fuse 0.29.0 (build 8396)
fuse: Could not find a fuse project to preview
Unfortunately, you have to specify the unoproj manually when using Gradle in preview. So the command would be
fuse preview <your unoproj> -tandroid -DGRADLE
i go this error following the above instruction
fuse preview myfuseapp -tandroid -DGRADLE
Fuse 0.29.0 (build 8396)
fuse: Could not find a fuse project to preview
It looks like you’re missing .unoproj at the end of myfuseapp. It should be myfuseapp.unoproj.
i corrected it and yet still error. is there something else i’m missing?
fuse preview myfuseapp.unoproj -tandroid -DGRADLE
Fuse 0.29.0 (build 8396)
Build started: FullCompile
Configuring (1.7s)
Compiling syntax tree (10.2s)
Generating code and data (16.9s)
C:\Users\Emenike pc\AppData\Local\Fusetools\Fuse\App\app-0.29.0.8396\Packages\UnoCore\0.40.2\targets\android@(Project.Name)\app\build.gradle(1.1): FATAL E6101: Object reference not set to an instance of an object.
C:\Users\Emenike pc\AppData\Local\Fusetools\Fuse\App\app-0.29.0.8396\Packages\UnoCore\0.40.2\targets\android@(Project.Name)\app\build.gradle(1,2): FatalError E6101: Object reference not set to an instance of an object.
Build ended
fuse: Failed to compile project
Finally got the app build. i had to install android 21. but i notice it is taking a long time to install apk on device.is it normal?
please help. i got this error
$ fuse preview myfuseapp.unoproj -tandroid -DGRADLE
Fuse 0.29.0 (build 8396)
Build started: FullCompile
Configuring (1.6s)
Compiling syntax tree (5.5s)
Generating code and data (25.1s)
Building Android app
2/2: myfuseapp.apk
(1:26)
Build completed in 119.01 seconds
Build ended
Installing APK on 1 device(s)
Launching activity 'myfuseapp'USER PID PPID VSIZE RSS WCHAN PC NAME
root 1 0 704 372 ffffffff 00000000 S /init
root 2 0 0 0 ffffffff 00000000 S kthreadd
root 3 2 0 0 ffffffff 00000000 S ksoftirqd/0
root 5 2 0 0 ffffffff 00000000 S kworker/0:0H
root 7 2 0 0 ffffffff 00000000 S migration/0
root 8 2 0 0 ffffffff 00000000 S rcu_preempt
root 9 2 0 0 ffffffff 00000000 S rcu_bh
root 10 2 0 0 ffffffff 00000000 S rcu_sched
root 11 2 0 0 ffffffff 00000000 R migration/1
root 12 2 0 0 ffffffff 00000000 R ksoftirqd/1
root 14 2 0 0 ffffffff 00000000 S kworker/1:0H
root 15 2 0 0 ffffffff 00000000 R migration/2
root 16 2 0 0 ffffffff 00000000 R ksoftirqd/2
root 18 2 0 0 ffffffff 00000000 S kworker/2:0H
root 19 2 0 0 ffffffff 00000000 R migration/3
root 20 2 0 0 ffffffff 00000000 R ksoftirqd/3
root 22 2 0 0 ffffffff 00000000 S kworker/3:0H
root 23 2 0 0 ffffffff 00000000 S khelper
root 24 2 0 0 ffffffff 00000000 S suspend_sys_syn
root 25 2 0 0 ffffffff 00000000 S suspend
root 26 2 0 0 ffffffff 00000000 S writeback
root 27 2 0 0 ffffffff 00000000 S bioset
root 28 2 0 0 ffffffff 00000000 S kblockd
root 29 2 0 0 ffffffff 00000000 S khubd
root 43 2 0 0 ffffffff 00000000 S devfreq_wq
ERROR: Process has exited, so the requested information is not available.
root 45 2 0 0 ffffffff 00000000 S cfg80211
root 46 2 0 0 ffffffff 00000000 S iewq
root 47 2 0 0 ffffffff 00000000 D sprd_tb_thread
root 48 2 0 0 ffffffff 00000000 S kworker/2:1
root 49 2 0 0 ffffffff 00000000 S pm_print
root 50 2 0 0 ffffffff 00000000 S kswapd0
root 51 2 0 0 ffffffff 00000000 S ksmd
root 52 2 0 0 ffffffff 00000000 S fsnotify_mark
root 53 2 0 0 ffffffff 00000000 S crypto
root 69 2 0 0 ffffffff 00000000 S ion_heap_system
root 70 2 0 0 ffffffff 00000000 S ion_heap_carveo
root 71 2 0 0 ffffffff 00000000 S GIRQ WorkQueue
root 72 2 0 0 ffffffff 00000000 S f5376000.spi
root 73 2 0 0 ffffffff 00000000 S f5378000.spi
root 74 2 0 0 ffffffff 00000000 S kworker/1:1
root 75 2 0 0 ffffffff 00000000 S kworker/3:1
root 76 2 0 0 ffffffff 00000000 S f537a000.spi
root 77 2 0 0 ffffffff 00000000 S dwc_otg
root 78 2 0 0 ffffffff 00000000 S usb 2 pc wq
root 79 2 0 0 ffffffff 00000000 S usb detect wq
root 80 2 0 0 ffffffff 00000000 S ft5x0x_ts_resum
root 81 2 0 0 ffffffff 00000000 S focal-wait-queu
root 82 2 0 0 ffffffff 00000000 S headset_button
root 83 2 0 0 ffffffff 00000000 S headset_detect
root 84 2 0 0 ffffffff 00000000 S headset_sts_che
root 85 2 0 0 ffffffff 00000000 S headset_reg_dum
root 86 2 0 0 ffffffff 00000000 S adpgar_byp_sele
root 87 2 0 0 ffffffff 00000000 S sprdbat_monit
fuse: Android run failed
It’s normal that it takes a while to install the apk for the first time. But from then on you get instant reload.
It looks like there is another problem though. Can you please try to see if you get the same problem if you do fuse build instead of fuse preview?
fuse build myfuseapp.unoproj -tandroid -DGRADLE -r
Please also post detailed information about the model of your Android device, and which version of Android it’s running.
Model is Halo
Android version 4.42