I am trying to control a servo using JetsonNano and a PCA9685 board. I am on Jetpack 4.3 and using python3. After a recent update I started to end up with the following error.
"NotImplementedError: pwmio not supported for this board"
from adafruit_servokit import ServoKit
kit=ServoKit(channels=16)
kit.servo[0].angle=90 ## Horizontal motion
kit.servo[1].angle=0 ## Vertical Motion
I've got the same issue at JetPack 4.6.
On JetPack 4.5.1 everything ok. I think something wrong with L4T 32.6.1...
I'm using Octave 4.2.1 and trying to import financial data into Octave. Following these instructions from Quandl site:
https://github.com/tradingjunkie/OctaveQuandlInterface
addpath('/path/to/OctaveQuandlInterface') --Ok
and I start by defining an Octave structure
Quandl.auth = token;--NOK
I got this message: "error: 'token' undefined near line 1 column 15"
Some help please.
Regards
Matt
When I include a "google maps" dependency into pubspec.yaml
google_maps_flutter: ^0.2.0+3
my build fails with:
Launching lib\main.dart on Android SDK built for x86 in debug mode...
D8: Program type already present: android.support.v4.media.MediaBrowserCompat$ConnectionCallback$ConnectionCallbackInternal
*********************************************************
WARNING: This version of google_maps_flutter will break your Android build if it or its dependencies aren't compatible with AndroidX.
See xxxxxxxxxxx for more information on the problem and how to fix it.
This warning prints for all Android build failures. The real root cause of the error may be unrelated.
*********************************************************
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\4.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\5.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\6.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\7.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\8.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\9.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\10.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\11.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\12.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\13.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\14.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\15.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\16.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\17.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\18.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\19.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\20.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\21.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\22.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\23.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\24.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\25.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\26.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\27.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\28.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\29.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\30.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\31.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\32.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\33.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\34.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\35.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\36.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\50.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\55.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\60.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\65.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\70.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\75.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\80.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\85.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\90.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\95.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\100.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\105.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\110.jar, C:\Users\philb\flutter_course2\build\app\intermediates\transforms\dexBuilder\debug\115.jar
Can someone point me in the right direction to understand and track this down. This project built just fine previously.
This is because you have in your app google_maps_plugin version that is using androidx and probably your app and/or some other dependency is using android support library. I had provided some ways to solve this kind of problem here and here.
But what you need to do is migrate all your app to androidx and use updated dependencies versions that already has been migrated too.
Other way is avoid androidx making downgrade of your dependencies packages for versions pre androidx.
For more details about flutter apps androidx migration see the original docs reference
I hope it helps.
The combination pyVisa and IronPython is giving me a hard time currently. I'm trying to communicate with an external device over GPIB using the pyVisa package, from within a script which in turn is written in IronPython.
It is the line
visa.ResourceManager()
that causes problems. I get the error "expected LP_c_ulong, got NativeArgument", that I can't resolve.
Is there any simple solution to this issue?
Thanks.
In my exeprience is not possible to import directly pyVISA in ironpython, I did someting working using Tektronix dll
clr.AddReferenceToFileAndPath('C:\\Windows\\Microsoft.NET\\assembly\\GAC_32\TekVISANet\\v4.0_1.1.1.0__7f19bb2a5a9ae6e8\\TekVISANet.dll')
import TekVISANet
i have installed:
CUDA sdk 4.2 64,
CUDA toolkit 4.2 64,
CUDA devdriver 4.2 64,
I checked every nvcuda.dll in \windows - all of them, are 4.2 version, but when i create a context with driver api and check it verison with cuCtxGetApiVersion - it shows me "3010"
I do not really care about that version, but when i try to use runtime api with that context(need to mix them) - it shows me error 49(cudaErrorIncompatibleDriverContext)
any ideas, what is going on and how to make it work together?
seems it is not some issue with windows - running the same project under linux results in the same 3010 API version.
I solved the problem - i was exporting "cuCtxCreate" function directly during execution(it is other language - no cuda.h). After looking in original cuda.h i found that it defines other name for that functrion, basing on some sort of smartass defines.
And that new function "cuCtxCreate_v2" creates a good context.
/facepalm