I want to delete all instances of "aA", "bB" ... "zZ" from an input string. e.g. echo "foObar" | sed -Ee 's/([a-z])\U\1//' should output "fbar" But the \U syntax works in the latter half (replacement part) of the sed expression - it fails to resolve in the matching clause. I'm having . . .阅读更多

I am new to this awesome platform, I made very simple example it contains only one xaml page yesterday it worked flawlesly , but when ran it today , it threw this exception out of nowhere this the exception am getting : HelloPage.xaml : <?xml version="1.0" encoding="utf-8" ?> <ContentP . . .阅读更多

For the purpose of a game, I need to generate a save code that the user can note somewhere and use to reload his game state later (no persistent data possible). The save code needs to be short like 6DZF1D3, (a base 36 or base 62 string). I'm storing scores of levels in a Dictionary<int . . .阅读更多

My code was working previously before, but seems to have stopped working. I tried yo angular:route api but this error was returned: Error: Cannot find module 'ansi-styles' at Function.Module._resolveFilename (module.js:338:15) at Function.Module._load (module.js:280:25) at Module.requi . . .阅读更多

In my program which traces out the path of a particle, I get the following error: Traceback (most recent call last): File "C:\Users\Felix\Google Drive\Research\particles.py", line 154, in <module> bfield += b_X(r_p(r,pos[2]))*(r_p(r,pos[2])/r) *((r-r_p(r,pos[2]))**2+pos[2]* . . .阅读更多

Every time I switch back to vim window, it shows the list, if current cursor on an empty line, it shows error: E349: No identifier Under Cursor. . . .阅读更多

In my Angular application I have few components which are used while testing and not included in any module. In WebStorm it shows me lint error saying Component is not included in any module, while I know that this is not included and that is the purpose. Is there a way to disable only . . .阅读更多

I'm trying to use this code from the scikit learn site: http://scikit-learn.org/stable/auto_examples/classification/plot_classifier_comparison.html I'm using my own data. My problem is, I have a lot more than two features. If I want to "expand" the features from 2 to 3 or 4.... I'm get . . .阅读更多

Any help would be great. Thanks in advance! I have git installed, and the ssh key setup, but I'm getting this weird error. admin@Administrators-MacBook-Pro:~/Desktop$ cd exercise/ admin@Administrators-MacBook-Pro:~/Desktop/exercise$ git init Initialized empty Git repository in /Users/a . . .阅读更多

I am trying to put a hard-coded data item to DynamoDB. I am using AWS SDK object to perform this update. And all the debug "Console.log" in the below code is getting printed but eventually it prints Task timed out after 3.00 seconds With no update to the DynamoDB function updatedb(inte . . .阅读更多

I'm learning Spring Boot and I get this error when a run the app Description: Field userRepository in com.example.controller.UserController required a bean of type 'com.example.repository.UserRepository' that could not be found. Action: Consider defining a bean of type 'com.example.rep . . .阅读更多

Today I got this message on the console when running selenium using the chromedriver. How do I suppress this? DevTools listening on ws://127.0.0.1:12740/devtools/browser/97101fe4-3b1f-42b0-b5c8-373cc18040b6 Relevant code: from selenium import webdriver driver = webdriver.Chrome(execut . . .阅读更多

I use Amazon web service api from within my Google app engine application. Amazon have said that they will only accept signed requests from Aug 15, 2009. While they have given simple instructions for signing, I am not so knowledgeable of Python libraries for SHA256. The app engine docu . . .阅读更多

I am getting this error when I am running any "consul members" on consul server and clients. The port is in LISTENING state and I made sure there is no firewall blocking. I get this error when in run the same in the consul client: Error retrieving members: Get http://127.0.0.1:8500/v1/ . . .阅读更多

I have installed Laravel 5.4 and used the php artisan make:auth. Everything was all fine, I set up my database and migrate everything. I also tested the login and registration and it was working perfectly. After that I managed to set up my other controllers and models. After I tested o . . .阅读更多

when I try to open XAMPP phpmyadmin It shows below error (ER(1) .before display this error (ER(1) phpmyadmin showed ER(2), then I installed again XAMPP 3 times. After installation, frist time phpmyadmin worked properly but when i refresh after crate a database, these errors are appeare . . .阅读更多

i get the following error: Traceback (most recent call last): File "/home/odroid/trackAndFollow/getPositions.py", line 34, in <module> tfVeloToCamera = np.hstack((np.vstack((rmVeloToCamera, zero_array)),np.transpose(translationVector_veloToCamera))) File "/usr/lib/python2.7/dist-pack . . .阅读更多

I'm working on a hangman game, and I keep running into the same error, and I've been trying to debug it for a couple hours with no progress. This is the error message: Traceback (most recent call last): File "hangman.py", line 128, in <module> guess = guessletter(miss + corre . . .阅读更多

I'm trying to build a query allowing me to make multiple aggregations (on the same level, not sub aggregations) on a single query. Here's the request I'm sending : { "index": "index20", "type": "arret", "body": { "size": 0, "query": { "bool": { . . .阅读更多

I'm running the following command and getting an error: $ kubectl get nodes error: You must be logged in to the server (the server has asked for the client to provide credentials) What's going on? . . .阅读更多