All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
3 views

Spring Data Cassandra ClassNotFoundException

get this error when start spring boot application my spring boot application Spring Boot version 2.2.4 and cassandra version spring-data-cassandra 3.0.1.RELEASE this is my error Caused by: java.lang....
0
votes
0answers
4 views

ImportError: cannot import name 'UserSerializer' from 'user.serializers'

I started a project in django and I am having problems with imports. I think the problem is caused by cyclical imports. I have changed the code in many ways, but I cannot solve it. The error: File &...
0
votes
0answers
2 views

Getting 401 Client Error when using firebase

I'm new to firebase and I'm trying to update some data in an existing project but I'm getting the following error: 401 Client Error: Unauthorized for url: https://esco-lebanon.firebaseio.com/esco-...
0
votes
0answers
3 views

the items doesn't be shown in the browser

the items were shown before I related react by node throw axios. I don't undersand the problem.the application work and it doesn't show me the items located in mongo db. before relating react with ...
0
votes
0answers
2 views

Fundamental Question Regarding Amazon SQS and polling

The current recommended approach for handling background jobs on Amazon, from what I can tell, is to use their SQS queueing system. My question is why. Instead of sending a message to the queue (SQS) ...
0
votes
0answers
3 views

How to pass host variables directly as a SQL variable value in Jupyter notebook?

I'm trying to write a SQL query for postgres using python in Jupyter where at different places, the code will be required to fetch different variable values extracted before in other code blocks. Is ...
0
votes
0answers
4 views

Android Room: Type mismatch: inferred type is java.util.Observer

I am stuck debugging a nasty type error with Android room. I understand that probably somewhere a wrong type is returned but I cannot figure out where. The error happens in an Activity in the code ...
0
votes
0answers
3 views

Get Value From Child in Firebase to Android Studio

enter image description here hello I'm new in android studio, I have something to ask. in the picture is my database, so I want to retrieve the value of latitude and longitude in my database. but the ...
0
votes
0answers
7 views

How can i frame a SQL Case statement for the below case?

I want to write a case statement to categorize users as engaged/ non engaged for example an engaged user is the one who books at least one order every 2 weeks. let say if someone booked the order 5 ...
0
votes
0answers
3 views

How to assign multiple variables in a loop for graphs in Python 3

I am relatively new to coding and I have a few issues I don't quite understand how to solve, yet. I'm trying to build code that will make graphs that will produce from a ticker list, with the data ...
-1
votes
0answers
6 views

Code won't read folders in the same directory

Background info. I'm trying to implement three functions transition_model, sample_pagerank and iterate_pagerank in the pagerank.py file all the code in such file except those three functions is given ...
0
votes
0answers
3 views

Firebase API in JavaScript and therefore public, concern for Auth?

I appreciate that variants of this have been posted before, however I am not seeing one that directly hits this concern. The Firebase recommendation is that for Web interfaces the JS includes enough ...
0
votes
0answers
2 views

Unable to fetch Json Column using sparkDataframe:org.apache.spark.sql.AnalysisException: cannot resolve 'explode;

Can Someone Help me In this Scenario.I am reading one Json File using spark/scala and then trying to access column name but while accessing the column name i am getting below error message. org....
0
votes
0answers
2 views

Codeigniter 3 URL Encrypt Decrypt Issues

Viewers I am facing issue with URL Encryption, I have done almost but stacking in some case let me explain... First Try: I have encrypted the URL by custom function & then I route the page to ...
0
votes
0answers
5 views

Data set throws Syntax error on Decode when collection is too large?

Problem: when decoding and writing with a large data set node is throwing a seemingly random Syntax Error. If I chunk the data set in to small sections the calculation goes through. Question: Has ...

15 30 50 per page
1
2 3 4 5
1321597