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I found this error when I tried to run an angular application. Any tip?

This is all using R in Rstudio. I am hoping for an quick solution. I am currently running through a Udacity R course, and they are asking me to run the below code to show the levels for the variable age.range in a dataset called reddit:

I'm trying to achieve this in my API after posting to my API as a 201 Status Code Return:

I'm trying to implement a neural network to generate sentences (image captions), and I'm using Pytorch's LSTM (nn.LSTM) for that.

The input I want to feed in the training is from size batch_size * seq_size * embedding_size, such that seq_size is the maximal size of a sentence. For example - 64*30*512.

After the LSTM there is one FC layer (nn.Linear). As far as I understand, this type of networks work with hidden state (h,c in this case), and predict the next word each time.

My question is- in the training - do we have to manually feed the sentence word by word to the LSTM in the forward function, or the LSTM knows how to do it itself?

My forward function looks like this:

I'm a beginner at javascript and React. I started to work on that project https://github.com/udacity/reactnd-project-myreads-starter, when I write this in the index file

intersection observer is only working on already existing elements, but when I add a new section by pressing add section button the intersection observer does not seem to observe I tried to run the observer again when I press the button but it does not work, I think I need to reassign the section variable somewhere in the code but I don't know in what part should I reassign it

when i press the button to add a section it does a add a section but it dose not update the navbar it's supposed to update the nave bar dynamically, the navbar only shows the already existig section not the section i added with js i don't seem to notice what i'm doing wrong if you have a solution please go ahead

I'm learning on Udacity and they have a quiz which I couldn't pass myself. I decided to look at the provided solution but I need to understand the process of the code (I understand some of it). Here it is:

OVERVIEW

Hello everyone, I am neither a developer nor a programmer, but I've started this Udacity Blockchain Nanodegree Program and I started programming some blockchain applications.

From the course I started to code a simple program to send some Ether from one Metamask account to another one, both accounts are in the same testnet (Rinkeby).

This is what I am using for program so far:

• Metamask with the 2 accounts in the Rinkeby Testnet.
• Web3 version 1.5.1
• ethereumjs-tx version 2.1.2
• Infura Rinkeby Endpoint

PROBLEM

The problem is that the course is outdated and most of their code doesn't work anymore. So, I started implementing my code after 3 days of searching through the Web3 website ( link: https://web3js.readthedocs.io/en/v1.4.0/index.html ), I managed to write the code that you can see in the snippet.

The code throws no errors on my end, and when I check the number of transactions (including the pending ones), the number of transactions keeps increasing each time I run my code. But, when I check the Rinkeby Etherscan website ( link: https://rinkeby.etherscan.io/ ), the transactions are nowhere to be found in the transaction list (completed, pending, failed, outgoing and incoming transactions).

QUESTIONS

• What is/are the problem/s with my code? How can I solve it/them?
• How do I calculate the GasPrice and how do I determine the GasLimit? I only want to make a transaction to send X amount of Ether with no data.
• I tried to use the same GasPrice and GasLimit as Metamask, but it throw me the error "Intrinsic gas too low". Why does it happen? Because, I had no problems using those values with Metamask, and the transaction to send some ether from one of my metamask account to the other took less than 3 minutes to completed (I sent the transaction from the Metamask Plugin).
• Does the chain's fork has anything to do with this problem? If so, How do I check the correct fork for my two accounts in Metamask?

NOTE

I am sharing through the code the private key for the senderAccount because these 2 accounts are only for testing this particular code in the Rinkeby Testnet. I am not planning to use them as wallets.

CODE