demo app wont load
@kapa.ai working with the saas boilerplate and the demo app wont load. I get this in the terminal
Server ] [nodemon] app crashed - waiting for file changes before starting... [ Client!] (node:4053) ExperimentalWarning: CommonJS module /home/brad/haystack9/app/.wasp/out/web-app/tailwind.config.cjs is loading ES Module /home/brad/haystack9/app/.wasp/out/sdk/wasp/dist/dev/index.js using require(). [ Client!] Support for loading ES Module in require() is an experimental feature and might change at any time [ Client!] (Use
Server ] [nodemon] app crashed - waiting for file changes before starting... [ Client!] (node:4053) ExperimentalWarning: CommonJS module /home/brad/haystack9/app/.wasp/out/web-app/tailwind.config.cjs is loading ES Module /home/brad/haystack9/app/.wasp/out/sdk/wasp/dist/dev/index.js using require(). [ Client!] Support for loading ES Module in require() is an experimental feature and might change at any time [ Client!] (Use
node --trace-warnings ... to show where the warning was created)10 Replies
Hi @wbjb. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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Based on the error message you've provided, it appears you're encountering an issue with the server crashing and some warnings related to module loading. Let's address this step by step:
1. Server crash:
The message
[nodemon] app crashed - waiting for file changes before starting... indicates that your server application has crashed. This is a common issue in Wasp development environments, as discussed in several GitHub issues.
2. Module loading warning:
The warning about loading ES Module in require() is an experimental feature notice and shouldn't directly cause the app to fail loading.
To troubleshoot this issue, you can try the following steps:
1. Clean and restart:
As suggested in this Discord thread (https://discord.com/channels/686873244791210014/1208366712450195466), try cleaning your project and restarting:
2. Check for port conflicts:
Ensure that no other applications are using ports 3000 or 3001, which are typically used by Wasp applications. You can check this by running lsof -i :3000 and lsof -i :3001 in your terminal.
3. Check your main.wasp file:
Make sure your main.wasp file is correctly configured, especially the auth methods section if you're using any authentication.
4. Examine server logs:
Look for any additional error messages in your server logs that might provide more context about why the app is crashing.
5. Update Wasp:
Ensure you're using the latest version of Wasp, as some issues may have been resolved in newer versions.
If these steps don't resolve the issue, you may need to provide more information about your specific setup and any recent changes you've made to your project. The error message alone doesn't provide enough context to pinpoint the exact cause of the crash.
For more detailed troubleshooting, you might want to check out these related discussions:
- UI becomes unresponsive after server reload from code change (https://github.com/wasp-lang/wasp/issues/620)
- Investigate Prisma client initialization error on first start after clean (https://github.com/wasp-lang/wasp/issues/427)
If the problem persists, consider sharing more details about your project structure and any recent changes you've made to get more specific help from the Wasp community.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @wbjb, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai [ Server!] Port 3001 is already in use
Let me check the knowledge base for you again. One moment! :books:
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This error message indicates that port 3001, which is typically used by the Wasp server, is already occupied by another process. This is a common issue that can prevent your Wasp application from starting properly. Let's address this problem based on the information from our knowledge sources:
1. Port usage in Wasp:
Wasp uses port 3000 for the client (frontend) and port 3001 for the server (backend) by default. As mentioned in this Discord thread (https://discord.com/channels/686873244791210014/1204153431019753512), "Server goes on port 3001, while client is a bit more flexible if I am correct (although it usually aims for 3000)."
2. Resolving the port conflict:
There are a few ways to address this issue:
a) Free up the port:
You can try to identify and terminate the process using port 3001. On Unix-based systems (Linux, macOS), you can use the following command:
This command will kill any process using port 3001. After running this, try starting your Wasp application again.
b) Change the port:
While Wasp doesn't currently have a built-in way to easily change ports, you can modify the
PORT environment variable for the server. In your project's .env.server file, add or modify the following line:
Replace 4000 with any available port number you prefer.
c) Wait for Wasp to implement dynamic port selection:
As discussed in this GitHub issue (https://github.com/wasp-lang/wasp/issues/730), the Wasp team is planning to implement more flexible port selection in the future. This would allow Wasp to automatically choose available ports if the default ones are occupied.
3. Additional considerations:
- Make sure you don't have another instance of your Wasp application running in the background.
- If you're running multiple Wasp projects simultaneously, you'll need to use different ports for each.
If you continue to face issues after trying these solutions, you may want to provide more details about your development environment and any other applications you might be running that could be using port 3001.
Remember, the Wasp team is aware of this limitation and is working on improving port selection flexibility in future versions of the framework.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @wbjb, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai this worked but now i'm getting an error in console in the app and I cant load any of the demo app fucntions here is the error ypeError: Cannot read properties of undefined (reading 'length')
at onAccept (Config.ts:62:38)
at oe (vanilla-cookieconsent.js?v=14504875:168:57)
at Module.Xe (vanilla-cookieconsent.js?v=14504875:704:137)
onAccept @ Config.ts:78Understand this errorAI
:3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI @tanstack_react-query.js?v=14504875:947 AxiosError onError @ @tanstack_react-query.js?v=14504875:947Understand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI @tanstack_react-query.js?v=14504875:947 AxiosError onError @ @tanstack_react-query.js?v=14504875:947Understand this errorAI :3001/auth/me:1
Failed to load resource: net::ERR_CONNECTION_REFUSEDUnderstand this errorAI
Let me check the knowledge base for you again. One moment! :books:
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Based on the error messages you've provided, it seems you're encountering multiple issues with your Wasp application. Let's break them down and address them one by one:
1. TypeError in Config.ts:
The error
TypeError: Cannot read properties of undefined (reading 'length') at Config.ts:62:38 suggests there's an issue with accessing a property of an undefined object. This could be related to the cookie consent configuration.
2. Connection Refused Errors:
The repeated errors Failed to load resource: net::ERR_CONNECTION_REFUSED for :3001/auth/me indicate that your application is unable to connect to the authentication endpoint on port 3001.
These errors suggest that while your frontend application might be running, it's unable to communicate with the backend server. Here are some possible reasons and solutions:
1. Backend Server Not Running:
Make sure your backend server is actually running on port 3001. You mentioned earlier that you changed the port due to a conflict. If you changed it to something other than 3001, your frontend might still be trying to connect to 3001.
2. Environment Variable Mismatch:
Check your .env.client file to ensure the REACT_APP_API_URL is set correctly. As mentioned in this Discord thread (https://discord.com/channels/686873244791210014/1217758453326680095), you need to set this to match your server URL:
(Replace 3001 with the port you're actually using for the backend)
3. CORS Issues:
If you're running the frontend and backend on different ports or domains, you might be encountering CORS (Cross-Origin Resource Sharing) issues. Make sure your backend is configured to allow requests from your frontend's origin.
4. Network or Firewall Issues:
Ensure that there are no network or firewall restrictions preventing communication between your frontend and backend.
To troubleshoot further:
1. Double-check that both your frontend and backend are running.
2. Verify the ports being used by both services.
3. Check your .env.client and .env.server files for correct configurations.
4. Try running wasp clean followed by wasp start to ensure a fresh start of your application.
If the issues persist after trying these steps, you might want to share more details about your project setup, including your main.wasp file contents and any modifications you've made to the demo app. This would help in providing more specific guidance.
Remember, as mentioned in this Discord thread (https://discord.com/channels/686873244791210014/1217758453326680095), when using Wasp, especially with setups like Gitpod, you need to ensure that your environment variables are correctly set to match your actual server and client URLs.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @wbjb, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai what you have at step 2 is probabaly the issue but I'm using the open saas template and it doesnt seem to have a .env.client
Let me check the knowledge base for you again. One moment! :books:
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You're right, and I apologize for the confusion. The open-saas template indeed handles environment variables differently from a standard Wasp project. Let's address this specifically for the open-saas template:
1. Environment Variables in open-saas:
In the open-saas template, environment variables are typically managed in a single
.env file in the project root, rather than separate .env.client and .env.server files.
2. Setting the API URL:
For the open-saas template, you need to set the REACT_APP_API_URL in the main .env file. As mentioned in this Discord thread (https://discord.com/channels/686873244791210014/1217758453326680095), you should add or modify the following line in your .env file:
Replace the URL with the actual URL of your backend server. If you're running locally, it would typically be <http://localhost:3001> (or whatever port your backend is running on).
3. Additional Configuration:
You might also need to set WASP_WEB_CLIENT_URL in the same .env file to specify where your frontend is running. For example:
4. Restarting the Application:
After modifying the .env file, make sure to restart your Wasp application for the changes to take effect:
If you're still encountering issues after making these changes, it might be helpful to review the entire contents of your .env file (excluding any sensitive information) to ensure all necessary variables are set correctly for the open-saas template.
Remember, the open-saas template might have specific requirements or configurations that differ from a standard Wasp project, so always refer to the template's documentation or README for the most accurate information.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @wbjb, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?Hey @wbjb, any luck here?
@Filip not really. The app wouldn't load because after I changed. The port it kept looking for auth at 3001. In the end i just decided to start with a fresh clone and everything is fine now. I'm not sure what the issue was. It was probably on my end though. Everything was working great when I was running a Linux VM but I switched to a dedicated linux machine and after that it wasn't working. I think there was probably something up with my machine. Either way I'm back up and running now so no big deal
Ok, glad you got it fixed!
Let us know if the issue comes back