App crash at startup #1184
Comments
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Without details about the crash and steps to reproduce the problem, it will be difficult for anyone to provide any help. |
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it seems that at the startup Android gives out this message: ModuleNotFoundError: No module named 'async_timeout' The result is that the app remain in backgrod and doesn't start. Please find the following info: - main.py import asyncio
import os
from kivymd.app import MDApp
from kivy.lang import Builder
import bleak
KV = """
Screen:
GridLayout:
rows:2
ScrollView:
MDLabel:
id:mdlab
size_hint_y: None
text: "Attesa per scansione BLE"
height: self.texture_size[1]
MDRaisedButton:
id:mdbut
text: "premi per scansione BLE"
size_hint_x:1
on_press: app.premuto_bottone()
"""
class MainApp(MDApp):
event = asyncio.Event()
def build(self):
self.title = "Antibrina"
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = "Red"
self.theme_cls.primary_hue = "400"
return Builder.load_string(KV)
async def avvia_scansione(self):
devices = await bleak.BleakScanner.discover(1)
if len(devices) == 0:
self.root.ids["mdlab"].text = "No Device Found!"
stringa = ""
for d in devices:
stringa += d.address + " " + str(d.rssi)
if d.name != None :
stringa += " " + d.name
stringa += "\n"
self.root.ids["mdlab"].text = stringa
def premuto_bottone(self):
self.root.ids["mdlab"].text = "Scanning for 5 seconds...."
if os.environ.get("P4A_BOOTSTRAP") is not None:
self.root.ids["mdlab"].text = "Android Ok !"
else:
self.root.ids["mdlab"].text = "Android KO !"
asyncio.create_task(self.avvia_scansione())
app = MainApp()
async def main(app):
await app.async_run("asyncio")
asyncio.run(main(app)) |
This is a 3rd-party module and likely needs to be added to some depedency list somewhere. Maybe here? |
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Maybe, but the Android Log Stream write that there is the following import error: "/home/ronni/app/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/python-installs/myapp/arm64-v8a/bleak/init.py", line 31, in at the line 31 of the file init.py , there is the followinfg code: sys.version_info < (3, 11): it seems that the script recognize a python version older that 3.11 and so it import the timeout library drom the external async_timeout package instead of from the asyncio . I think that Android doesn't find the "async_timeout" lib to import. On the contrary, on Windows, where the this library is installed as dependecy of the bleak package, the python finds the lib to import. do I have to declare something special inside my buildozer.spec file ? |
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I don't know much about how buildozer works. The line of code I linked to above was my best guess of where something needs to be changed. |
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I solver the problem adding "async-timeout" in the requirements( the lib name was different from label "async_timeout" used in the import declaration ...) Now the app starts, but when I try to scan for ble devices, i give back an exception. It desn'pt find the class "com.github.hbldh.bleak.PythonScanCallback Can you help me ? Of course it works On windows. |
Can you make a pull request to fix this?
Sounds like #756 |
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Sounds Good ! I've included the java files in the buildozer.spec, using the keywords "android.add_src" and it works for the moment, I've tested only the scan function of the library. is it possible to make some change to load the java files automatically ?? |
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If someone else is facing a similar issue with the example app. Along with these fixes mentioned (This issue and #756). Specify your python3 version in requirements eg. python3==3.10.6 |
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I had similar problems with the example app. With those fixes, mentioned above, i was able to run it. But i have a different problem now: The app has no permissions to access the BLE Module of the phone i think. I already tried different fixes but im not able to fix it. This is the error log from the phone: Im new to coding so im sorry if i missed important information you may need to help. |
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It's August 2023 and brinata's solution of adding async-timeout to the requirements line in buildozer still worked for me. |
if I insert the following line in my Android App:
"import bleak"
the app crashes at start up in my mobile, but it works under windows 10.
On windows I'm using the following versions:
Pythpn 3.10.9
bleak 0.19.5
Kivy 2.1.0
buildozer 1.4.0
Inside the builddozer.spec file I haven't specify the version of the packages
Can Someone Help me ?
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