trace | Supply chain transparency platform proof-of-concept | Frontend Framework library
kandi X-RAY | trace Summary
kandi X-RAY | trace Summary
A transparent supply chain management platform with end users in mind. Trace is a decentralized application based on the Ethereum blockchain aiming to let consumers see the data behind the products they buy every day. It currently allows industry experts to add products to the app, as well as create certifications that can be added to products. A mobile companion app (not developed yet) would allow scanning Trace QR codes placed on the actual products to see the data on-premise (e.g. at the grocery store). Keep in mind that this is a proof of concept. It is not production ready by any means. However, we do invite you to play around with the project and use it as you see fit. There are some rough edges, so we definitely appreciate your help in improving the platform. This project was developed under the supervision of Bessam Abdulrazak, director of the Ambient Intelligence Lab at Université de Sherbrooke. Made using the Truffle toolkit, React.js, Redux, and Webpack. Logo design by Laurence Mailhiot.
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Top functions reviewed by kandi - BETA
- Build the production build .
- Setup the compiler
- Adds middleware to the server .
- Runs the dev server .
- Prints a list of files size .
- Define a proxy error handler function .
- Constructs client environment variables .
- Output a difference file size label .
- Add a slash to the given path .
- Print the list of errors to the console .
trace Key Features
trace Examples and Code Snippets
Community Discussions
Trending Discussions on trace
QUESTION
In my flutter project, I have made some updates of plugins and then used flutter upgrade. After that, whenever I am running my flutter project it is showing following error-
...ANSWER
Answered 2021-Dec-16 at 11:49For me, cleaning and getting the packages didn't work. This error started after I upgraded flutter. I was on the master channel, a quick fix for me was to switch to stable.
QUESTION
I recently upgraded all of my dependencies in package.json to the latest. I went from Angular 12.2.0 to 13.0.1 and github is now rejecting my push with the following file size error. Is there some setting I need to define in angular.json build profile that will help minimize these cache file sizes?
...ANSWER
Answered 2021-Nov-24 at 16:53Make sure your .gitignore
is in the parent folder of .angular
.
In that .gitignore
file, a simple .angular/cache/
should be enough to ignore that subfolder content.
Check it with:
QUESTION
I'm trying to initiate a Springboot project using Open Jdk 15, Springboot 2.6.0, Springfox 3. We are working on a project that replaced Netty as the webserver and used Jetty instead because we do not need a non-blocking environment.
In the code we depend primarily on Reactor API (Flux, Mono), so we can not remove org.springframework.boot:spring-boot-starter-webflux
dependencies.
I replicated the problem that we have in a new project.: https://github.com/jvacaq/spring-fox.
I figured out that these lines in our build.gradle file are the origin of the problem.
...ANSWER
Answered 2022-Feb-08 at 12:36This problem's caused by a bug in Springfox. It's making an assumption about how Spring MVC is set up that doesn't always hold true. Specifically, it's assuming that MVC's path matching will use the Ant-based path matcher and not the PathPattern-based matcher. PathPattern-based matching has been an option for some time now and is the default as of Spring Boot 2.6.
As described in Spring Boot 2.6's release notes, you can restore the configuration that Springfox assumes will be used by setting spring.mvc.pathmatch.matching-strategy
to ant-path-matcher
in your application.properties
file. Note that this will only work if you are not using Spring Boot's Actuator. The Actuator always uses PathPattern-based parsing, irrespective of the configured matching-strategy
. A change to Springfox will be required if you want to use it with the Actuator in Spring Boot 2.6 and later.
QUESTION
A Flutter Android app I developed suddenly compiled wrong today.
Error:
What went wrong:Execution failed for task ':app:processDebugResources'.
Android resource linking failed /Users/xxx/.gradle/caches/transforms-2/files-2.1/5d04bb4852dc27334fe36f129faf6500/res/values/values.xml:115:5-162:25: AAPT: error: resource android:attr/lStar not found.
error: failed linking references.
I triedRun with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.orgThe build failed in 16 seconds.
...ANSWER
Answered 2021-Sep-02 at 19:05Are you using the @react-native-community/netinfo library? You need to refresh this library if you are using it.
After updating or uninstalling and reinstalling the netinfo library it will work.
QUESTION
This problem started a few weeks ago, when I started using NordVPN on my laptop. When I try to search for an extension and even when trying to download through the marketplace I get this error:
EDIT: Just noticed another thing that might indicate to what's causing the issue. When I open VSCode and go to developer tools I get this error messege (before even doing anything):
"(node:19368) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.(Use Code --trace-deprecation ...
to show where the warning was created)"
The only partial solution I found so far was to manually download and install extensions.
I've checked similar question here and in other places online, but I didn't find a way to fix this. So far I've tried:
- Flushing my DNS cache and setting it to google's DNS server.
- Disabling the VPN on my laptop and restarting VS Code.
- Clearing the Extension search results.
- Disabling all the extensions currently running.
I'm using a laptop running Windows 10. Any other possible solutions I haven't tried?
...ANSWER
Answered 2021-Dec-10 at 05:26December 10,2021.
I'm using vscode with ubuntu 20.04.
I came across the XHR errors from yesterday and could not install any extensions.
Googled a lot but nothing works.
Eventually I downloaded and installed the newest version of VSCode(deb version) and everything is fine now.
(I don't know why but maybe you can give it a try! Good Luck!)
QUESTION
I've built my React Native app and tested and troubleshooted with my iOS devices for months. Now I'm trying to built and test the app on Android for the first time. The thing is, that I keep getting errors trying to run the Android-version of my app. After hours of debugging and troubleshooting, I tried to create a new RN project and see if that could run on my emulator and device. I got that part working and then I wanted to copy/paste the files of my existing app project into the new project.
I pasted my existing assets, styles, the source JS-files and the package.json file into the new project, ran npm install
and then I ended up with the exact same error message as I had in the original project when I run react-native run-android
.
The full error message is here:
...ANSWER
Answered 2021-Aug-21 at 13:43I've hit this same issue and have temporarily resolved it by uninstalling react-native-video (npm uninstall --save react-native-video). That's not a great answer as I need that component, but I don't have a full solution yet. I think somehow com.yqritc:android-scalablevideoview:1.0.4. is required by react-native-video but has gotten lost or removed. Other thoughts are welcome.
UPDATE: Resolved! In your build.gradle in your Android folder you need to add the repository "jcenter()" in allprojects (not in build dependencies) like this...
QUESTION
I just updated flutter version from 2.5.3 to 2.8. I have the following error that i dont know how resolve it. There is no error on any plugin installed, It seems that the error comes from the inner classes themselves and I don't know in which part of my application the error is throwed:
...ANSWER
Answered 2021-Dec-13 at 13:09I have solved it by forcing update flutter_math_fork
adding to pubspec:
QUESTION
When I run my project on web the Exception message and stack trace was
...ANSWER
Answered 2021-Oct-31 at 06:28try one of theies
flutter run -d chrome --web-renderer html
flutter build web --web-renderer html
QUESTION
I have created a new flutter project and added camera
plugin. after adding that dependency I got many errors. I used futter version is 2.5.2
& minSdkVersion 21
In pubspec.yaml
file,
ANSWER
Answered 2021-Nov-17 at 07:00How about this?
flutter pub cache repair
QUESTION
I have an java app (JDK13) running in a docker container. Recently I moved the app to JDK17 (OpenJDK17) and found a gradual increase of memory usage by docker container.
During investigation I found that the 'serviceability memory category' NMT grows constantly (15mb per an hour). I checked the page https://docs.oracle.com/en/java/javase/17/troubleshoot/diagnostic-tools.html#GUID-5EF7BB07-C903-4EBD-A9C2-EC0E44048D37 but this category is not mentioned there.
Could anyone explain what this serviceability category means and what can cause such gradual increase? Also there are some additional new memory categories comparing to JDK13. Maybe someone knows where I can read details about them.
Here is the result of command jcmd 1 VM.native_memory summary
ANSWER
Answered 2022-Jan-17 at 13:38Unfortunately (?), the easiest way to know for sure what those categories map to is to look at OpenJDK source code. The NMT tag you are looking for is mtServiceability. This would show that "serviceability" are basically diagnostic interfaces in JDK/JVM: JVMTI, heap dumps, etc.
But the same kind of thing is clear from observing that stack trace sample you are showing mentions ThreadStackTrace::dump_stack_at_safepoint
-- that is something that dumps the thread information, for example for jstack
, heap dump, etc. If you have a suspicion for the memory leak in that code, you might try to build a MCVE demonstrating it, and submitting the bug against OpenJDK, or showing it to a fellow OpenJDK developer. You probably know better what your application is doing to cause thread dumps, focus there.
That being said, I don't see any obvious memory leaks in StackFrameInfo
, neither can I reproduce any leak with stress tests, so maybe what you are seeing is "just" thread dumping over the larger and larger thread stacks. Or you capture it when thread dump is happening. Or... It is hard to say without the MCVE.
Update: After playing with MCVE, I realized that it reproduces with 17.0.1, but not with either mainline development JDK, or JDK 18 EA, or JDK 17.0.2 EA. I tested with 17.0.2 EA before, so was not seeing it, dang. Bisection between 17.0.1 and 17.0.2 EA shows it was fixed with JDK-8273902 backport. 17.0.2 releases this week, so the bug should disappear after you upgrade.
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