Realm installation error: Please establish an RPC session with a valid host before proceeding

After installing realm using the following commands:

npm i realm -S
react-native link realm

Note: This issue arises only when debugging from a device.

Although everything is still functioning properly, I am encountering an error message 

Must first create RPC session with a valid host
when trying to enable Debug Js Remotely from the development menu. Previously, remote debugging was working fine and the development server is running on port 8081 as usual.

If you require any code examples, please let me know. Realm is not being invoked until later in the process.

From package.json:

{
  "name": "ExampleProject",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "babel-jest": "^20.0.1",
    "babel-preset-react-native": "1.9.1",
    "jest": "^20.0.1",
    "react": "16.0.0-alpha.6",
    "react-native": "^0.44.0",
    "react-native-device-detection": "^0.1.3",
    "react-native-elements": "^0.11.2",
    "react-native-orientation": "git+https://github.com/yamill/react-native-orientation.git",
    "react-native-scrollable-tab-view": "^0.6.5",
    "react-native-vector-icons": "^4.1.1",
    "react-navigation": "^1.0.0-beta.9",
    "react-test-renderer": "16.0.0-alpha.6",
    "realm": "^1.3.0"
  },
  "jest": {
    "preset": "react-native"
  }
}

Error:https://i.sstatic.net/9i2Bb.png

The Realm Issue tracker briefly mentions this problem, but I have yet to find a solution. If anyone has encountered this issue before or can offer guidance on how to resolve it, I would greatly appreciate it.

javascriptandroidiosreact-nativerealm

Answer №1

It's uncertain if a better solution will emerge in the future or if there will be no resolution at all. Here is what I have discovered.

Resolving this issue remains unclear to me. However, it is recommended to ensure that your device can reach the realm's port (usually 8082) by running adb forward tcp:8082 tcp:8082 in a terminal.

In addition, confirm that your device is connected to the same subnet/network to prevent any packet loss.

You may want to try removing the app from the device completely (resetting it), along with closing the packager and then restarting with react-native run-android or running from xcode.

As of now, there doesn't appear to be a standardized solution available.

Answer №2

In addition to removing the app from the simulator prior to rerunning it, I also cleared out any previously cached data and settings on the simulator by navigating to: 

Device -> Erase All Contents and Settings ...
. Following this step, I rebooted the simulator and launched the application again, resulting in the disappearance of the error mentioned by the original author.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

What happens when an app crashes due to a missing object in the JSON response?

When creating a model using my response to create a model with JSON, certain parameters may or may not be present in the response. Here is an example of my code: { "result": { "success": true, "data": [ { "uid": "xxxxxxx", "total_activities": "1 ...

androidjson

iPhone Operating System version 7 Application Ended because of Memory Stress

My iPad app has two views that use large UIScrollViews, causing memory issues. The first memory warning occurs at around 250MB of memory usage. When I analyze the app using Apple Instruments, some of the largest All Heap allocations are: VM: ImageIO_JPEG_ ...

iosobjective-cmemory-management

The PDF file appeared blank after receiving a response from the API using Node.js

When I call a REST API that returns a PDF file, the document appears blank when opened. The console indicates that the data may be corrupted. let url ="API-URL"; var options = { 'method': 'GET', 'url': url ...

javascriptnode.jsapi

Utilize AJAX to dynamically refresh the page without having to reload it, enabling the use of both POST and GET methods

In order to avoid reloading the page when refreshing, I am utilizing Ajax for this particular 3-sided content along with JavaScript. Here is the code: Content: <ul id="nav"> <li><a href="ajax_adat.php?id=8&epul=0">Data</a>< ...

javascriptphpjqueryhtmlajax

Tips for implementing validation on dynamically generated fields

Currently, I am implementing JavaScript validation methods and rules for my form which is functioning properly. However, I have a feature where users can add multiple phone numbers by clicking on an "Add More" button. The challenge I am facing is how to va ...

javascriptjqueryvalidation

Steps to automatically scroll the screen to the top when the keyboard is open in Ionic

Encountering an issue where I cannot scroll the screen while the keyboard is open. I created a screen with labels, buttons, and a textarea. Initially, the textarea is hidden and when the user clicks a button, the textarea is shown. However, when I focus on ...

androidiosangularjsionic-framework

javascript - highlight the content within a table cell and automatically populate the input field on the corresponding row

Currently, I am using the document.onmouseup event to select text. However, my code only allows me to specify one input. How can I modify it to select text from the first row and place it into the input in the first row, and do the same for the second row? ...

javascripthighlightonmouseup

Determine if a JavaScript code in my ASP view will be executed based on control from the controller

Working on an ASP.NET MVC4 system, I have a javascript code that displays a performance graph of students when the page loads. Here is the code for the graph: <script> window.onload = function () { var r = Raphael("holder"), ...

c#javascriptasp.netasp.net-mvcasp.net-mvc-4

Redis method LRANGE is returning a list in a way that doesn't meet my requirements

I have a significant amount of data stored in redis which I am caching. When I need to retrieve this data, I use the lrange function to fetch it. The issue is that when the data is returned, it is in a format like this: https://i.sstatic.net/r1oa8.png Ho ...

javascriptnode.js

Add an item to a sub-array within an object stored in a Mongoose array

Here is the schema I am working with: { ..., description: { type: String, required: true, trim: true }, tags: { type: [{ type: String }] }, lessons: [{ name: String, ...

javascriptnode.jsmongodbmongoose

Instructions on how to send HTML content as a string to a different function for iteration?

Encountering an issue where a function is returning JSON data upon success. Attempting to implement infinite scroll functionality, the function prepares HTML for looping in another function. The server response includes JSON structured as follows: { "id" ...

javascriptajaxloopsparameters

iOS - Detecting user's touch movements in a UITableView

There are actually two questions wrapped in one here, but I am confident that solving the first will lead to a solution for the second. To begin with, I have designed a view using Interface Builder (yes, I know!) and then loaded the xib file into my view ...

iphoneiosipaduitableviewuigesturerecognizer

Tips on employing useState within useEffect?

Attempting to refactor my component from react.component to hooks has been a bit challenging. I am struggling to properly utilize the state variable offsetTop. It seems like the value is not being set when needed. In my first attempt: const [offsetTop, se ...

javascriptreactjsreact-hooksnext.js

Promise - rapidly access data from a function that resolves a Promise

Could someone suggest a technique for instantly extracting data from a function that returns a Promise? For example, in my simplified scenario, I have an AJAX preloader like this: loadPage("index.html").then(displayPage); If the page being loaded is lar ...

javascriptajaxfunctionpromise

Creating a drop-down menu that aligns perfectly under the bar in Material-UI: What you need to know

While working with Material-UI, I encountered a problem with my drop-down menu. Every time I click on it, it covers the bar instead of appearing below it (see image links below). https://i.stack.imgur.com/1Y8CL.jpg https://i.stack.imgur.com/emf87.jpg Is ...

javascriptcssreactjsmaterial-ui

Adding various image files to the canvas

I am facing an issue with my code where I need to find images inserted by the user into a div and then combine them into one image in a canvas when the "snap" button is clicked. While I can successfully locate, position, and resize the images inside the ca ...

javascripthtmlcanvasdrawimage

Steps for inserting an additional header in an Angular table

https://i.stack.imgur.com/6JI4p.png I am looking to insert an additional column above the existing ones with a colspan of 4, and it needs to remain fixed like a header column. Here is the code snippet: <div class="example-container mat-elevation-z8"> ...

javascripthtmlangular

"Encountering app crashes while trying to establish an instance of a view

Trying to get ready for segue, but encountering a thread 1 signal sigabrt error when setting an instance of the VC I'm transitioning to. Have imported the VC using #import "NoteViewController.h" Here's my prepare for Segue: - (void)prepareForSe ...

iosobjective-c

Adding up the values of a Django-generated table using JavaScript

I am currently facing an issue with populating a table using a Django for loop along with JavaScript to calculate the sum of values in a specific column. However, I am encountering difficulties as the total value is not being displayed as expected in the d ...

javascriptjquerypythonhtmldjango

trigger an event once an element has completed cycling using cycle.js

Incorporating the cycle.js library for simple transitions between images: $(document).ready(function() { var first; var $slider = $(".trauringe"); $slider.cycle({ timeout: 8000, next: '#next', prev: '#prev' ...

javascriptjquery