In the last couple of days I've been working with Twilio package. Didn't have any kind of problem until today when I tried to import it for a new project (using PyCharm) and appears this message
PackagesNotFoundError: The following packages are not available from current channels
Does anyone know why?
If you have Anaconda Navigator, launch the CMD.exe Prompt. Type "pip install twilio" and run. That solved it for me.
Related
I've been trying to use the ROS(Robot Operating System) using this page:
Tutorial page
In the link it makes you use turtle sim it seemed to work fine with me without any errors.
In the 4th step(install rqt),i get this error:
`INPUT: RQT
OUTPUT: ImportError for 'pyqt': No module named 'PyQt5'
ModuleNotFoundError: No module named 'PyQt5'
ModuleNotFoundError: No module named 'PySide2'`
There was more lines of error but it seemed irrelevant to me because it only says file names.
I'm using python version 3.8.3 and qt version 5.12.12.
I downloaded the qt manually in their website.Didn't use:
pip install PyQt5
And i don't exactly remember now but someone said something about local files of pyhton but i had none of them:
screenshot of C:\Users\Boran\AppData\Local\Programs
It supposed to be Pyhton files in here.
Also there is no problem about python it works fine and i used talker and listener(pyhton coded applications of ROS.) and they worked fine.
I solved the problem by installing graphviz.It appears that to run rqt i had to install graphviz.
I am facing an issue any time I try to run any app or flutter command from the terminal, this is displayed: Checking Dart SDK version... << was unexpected at this time.
Not even flutter doctor works.
Nothing seems to work and it's so frustrating as it happened out of the blue. One moment everything was fine, now nothing works. Any help will be appreciated
I've resolved this error with the below steps:
Go to C:\Users\{Name}\.gradle} - Delete the .gradle directory.
Then Download and install the same flutter and dart SDK version in some other location and set the environment variables.
Example:
Environment variables Before :
("D:\FlutterExtractedFiles\flutter\bin")
("D:\FlutterExtractedFiles\flutter\bin\cache\dart-sdk\bin")`
Environment variables After :
("C:\edgedownloads\flutter_windows_v1.12.13+hotfix.8-stable\flutter\bin")
("C:\edgedownloads\flutter_windows_v1.12.13+hotfix.8-stable\flutter\bin\cache\dart-sdk\bin")
Then check the Android Studio event log
I've resolved this error by following these steps:
Go to folder C:....\Flutter\
Run this command: git reset --hard HEAD
This will restore the flutter SDK folder to its original state, so no need to reinstall the SDK.
Flutter reinstalled worked for me..
delete flutter folder in C directroy.
make a src folder in C: directory.
GoTo cmd and install flutter from official flutter github repoC:\src>git clone https://github.com/flutter/flutter.git -b stable
https://flutter.dev/docs/get-started/install/windows
run flutter doctor
set env path.
DONE
What worked in my case was deleting the .gradle file (C:\Users\USER.gradle) and reinstalling Flutter in another location and changing the PATH to it.
you should try this
restart your pc and delete the flutter folder in C directory then reinstall flutter and run flutter doctor
For me, the following steps resolved the problem:
Open cmd and run flutter doctor. (if there is an issue resolve them first.)
If not then change the flutter channel to dev. Whatever your channel is?. If this is the dev channel then change to master channel.
Again flutter doctor. If everything goes perfectly. then run your project. If it runs accordingly then again change to channel to stable.
I faced this error before, all I had to do was to:
Remove Flutter from my C directory.
Install Flutter from the official website.
Run Flutter doctor: flutter doctor
No need for changing the PATH or any further actions.
If it worked fine with you then you are all done!
I faced another error after it, related to the Dart SDK and solved it using this link
the key is to install Android SDK Command-line Tools, steps being:
Open Android Studio Tools Menu, SDK Manager In the window that comes
up there are inner panels, choose SDK Tools panel Tick Android SDK
Command-line Tools Choose Apply button near the bottom of the window
At that point, you will be prompted to accept the SDK license and the
command line tools will be installed. Your license issue should now be
resolved.
If your using Intelij and get the << error and none of the above work.
Delete the .intelij folder in your project and reopen the folder in intelij.
I faced this problem too and I've solved it by downloading SDK file again.
I am trying to plot in metpy with the help of "xarray with MetPy Tutorial".
For that, I am getting error when am running following modules in:
'import cartopy.crs as crs'
'import cartopy.feature as cfeature'
'import matplotlib.pyplot as plt'
'import xarray as xr'
'import metpy.calc as mpcalc'
'from metpy.testing import get_test_data'
'from metpy.units import units.'
ModuleNotFoundError: No module named '_lzma'
like those errors will appear
so anyone help me.
Thanks in Advance.
This appears to be an issue with your Python build, rather than with MetPy, as _lzma is part of the standard library. From a quick Google search, it seems like this may be an issue with Ubuntu? At any rate, if you google the error, you'll find quite a few solutions to this issue, depending on what your operating system is. We suggest using the Anaconda distribution of Python (https://www.anaconda.com/distribution/), which is easy to set up, and haven't had anyone report this issue before using that stack.
I experienced this error with python 3.7.3 as well. Switching to Python 3.6.5 :: Anaconda, Inc. solved my problem.
I just ran into the same error and blogged about it here. Basically the underscore in the module name hints that it is a module written in C or C++. The reason it is missing from your system is most likely because of a missing system dependencies during installation of the python interpreter. If you installed Python with pyenv they have documented which dependencies should be installed by plattform. Conda does not have that particular problem as it ships with binary dependencies.
I'm trying to build and run an iOS simulator version of the getting started React Native project from the instructions at:
https://facebook.github.io/react-native/docs/getting-started.html
The app launches in the XCode simulator, displays it's window very briefly but then an exception occurs that opens a red screen with the message
"Requiring unknown module "498".If you are sure the module is there,
try restarting Metro Bundler. You may also want to run yarn, or npm
install (depending on your environment).
loadModuleImplementation require.js:176:29
viewPropTypes.js:15:30
loadModuleImplementation require.js:212:12
View.js:20:22
loadModuleImplementation require.js:212:12
AppContainer.js:22:13"
etc
Line 15 of ViewPropTypes is
const PlatformViewPropTypes = require('PlatformViewPropTypes');
Line 20 of node_modules/react_native/Libraries/Components/Views/View.js is
const ViewPropTypes = require('ViewPropTypes');
Note: There is another, 15 line View.js files in the directory structure at node_modules/react_native/lib/ it's basically a stub containing
// This is a forwarding module to allow React to require React Native internals
// as node dependency
module.exports = require('View');
I'm on the latest of everything, MacOS High Sierra (10.13.4), XCode 9.3 with 9.3 command line tools installed. I've tried running yarn and npm install, and a fresh install. Obviously I have NPM and Watchman installed. Any ideas why the stock example won't run for me?
Newbie mistake. I had previously attempted to build a different React Native project in a different directory, and Metro Bundler was still pointed at the previous project. As the error message suggested, restarting Metro Bundler fixed the problem.
Also didn't realize the errors in the exception screen were tappable, they take you right into the Metro Bundler terminal process for more detail. Hope this helps someone else too!
In my case, just close all the related process, and re-run react-native run-android solved the problem.
refer to: https://github.com/facebook/react-native/issues/11568
I had the same issue.
In my case, while creating a reusable component, I wasn't importing React into the file,as I was not using them(in functional component) in the component file.
Turns out that jsx to React Element conversion happens per file/module basis, so we should import React and component in every file.
Including Both React and Component normally, solved the problem.
For me I got "955" error. And a simple solution was to
import React, {Component} from "react";
Can anyone tell me why my app is not installing at all and ending with the error message
Observatory connection never became ready.
the app was working perfectly fine until yesterday .
I have changed the channel to master yesterday in the command prompt and from then on the app never runs.
I even switched back to channel alpha but still no use.
I have attached a screenshot of the command prompt where the installation was stuck forever.
I am not so sure if I need to reinstall the flutter. I am worried if I uninstall the flutter now it may not configure properly and I might break it forever.
Please can someone tell me what exactly might have gone wrong.
Many Thanks,
Mahi
Instead of reinstall try with following: (Mac)
Set Path Variable: via following terminal command
export PATH=~/flutter/bin:$PATH;
that is bin folder path of flutter.
export PATH=[PATH_TO_FLUTTER_GIT_FOLDER]/bin:$PATH
https://flutter.io/setup-macos/#update-your-path
If above not worked. Check with the Dart version
dart --version
Install the latest dart version:
brew install dart --devel
Hope this helps others.
For Mac
open terminal
$ echo $PATH
it will show like this
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:
it means you need to add flutter in to path
Open Finder presss command + shift + G
Put /etc/paths in dialog and press GO
Copy the file "paths" and paste it on desktop
Then open the pasted "paths" file from desktop
and add following line into end of the file "/flutter/bin"
Then copy that file and again paste it on /etc/paths
same like step no 2
it will ask you to replace or not
press replace
Now if you hit $ echo $PATH on terminal it will show
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/swagat/development/flutter/bin
Now your $flutter doctor will work perfectly
The solution is from Google Groups #Flutter-Dev
Thank you very much for your reply #Michael Thomsen.
I've tried what you have suggested and the details are as follows:
When I used flutter run -v command the command prompt output is as follows:
It was stuck for a while at waiting for port connection if I am not wrong.
So I've used AndroidStudio, File>Open and selected android/ folder to run the app then the gradle was showing an error:
Error:Conflict with dependency 'com.android.support:support-annotations' in project ':app'. Resolved versions for app (25.2.0) and test app (25.4.0) differ. See http://g.co/androidstudio/app-test-app-conflict for details.
I modified the build.gradle(Module:app) to show the correct version of 25.2.0 which was previously showing 25.4.0.
dependencies {
androidTestCompile 'com.android.support:support-annotations:25.2.0'
}
I just saved the changes inside android studio and the gradle sync completed without any errors.
Now I can run the app from inside Android Studio and also from IntelliJ IDE.
Thanks very much Michael this solved my problem.
Reinstalling flutter would be my starting point. If this problem persists, please post the output of $>flutter doctor and a description of what exactly leads to this error.