Develop Reference

Error: 'Flutter\Flutter\FlutterCode\StatefulWidget\android' is not recognised internal or external command, operable program or batch file

Error:
'Flutter\Flutter\FlutterCode\StatefulWidget\android' is not recognised internal or external command, operable program or batch file.
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
Caused by: java.lang.ClassNotFoundException: org.gradle.wrapper.GradleWrapperMain
Exception: Gradle task assembleDebug failed with exit code 1.
Details:
I reinstalled window and installed all the necessary tools(android studio, flutter sdk, git, dart sdk, android sdk) for flutter development, all was working fine, and then after some days I forgot password of my laptop (window 11), to fix this I changed the command prompt access at the login page accessibility, then I was able to reset my password.
But unfortunately I wasn't able to access command prompt from window. To fix this I just reinstalled the window. And again I did all setup for flutter development, When I ran the project I saw this error first time. This error is so inevitable, even I set the environment variable paths and system correct there's no error there.
Sometimes I am able to run the app on android studio and again cannot run it on vs code, if I try on vs code, it starts giving this error on anroid studio as well, and then this error persists and doesn't go anywhere.
If someones has had the same issue, please help me to resolve it.
Thanks.
I reinstalled, new graddle from their original website, did try on other simulators but nothing worked for me.

The game crashes after the build for android

I have a problem with the game crashing after the build. If I run the game in Unity, then everything works. And when I build it on android, when I start the first training scenes work fine, but when I reach the main stage, the game crashes. There is a error in Unity:
Google.JarResolver.ResolutionException: Cannot find candidate artifact for com.google.android.gms:play-services-games:8.4+
Maybe that's the problem. If that's not the problem, how do you know what it is?

So this looks like plugin resolve problem. But more information wouldnt be bad and you should learn how to see your device logs on Android. Here is how:
You should check the logs of your mobile device in the moment of the crash. You can do it by using "adb logcat".
First you should download SDK Platform Tools.
Then, enable USB debugging on your phone.
Connect your phone to your PC and give the permission it needs. It will ask you when you first connect it.
Open command line on your computer, go to your SDK Platform Tools folder, copy the directory and paste it after writing "cd " to your command line
Now you can use adb to figure out your Android crashes. To filter the ADB you can use
adb logcat -s Unity ActivityManager PackageManager dalvikvm DEBUG
This way you will only see Unity related logs from your device.

The flutter tool cannot access the file

I try to run the Flutter project but there is an error
Flutter failed to write to a file at
"C:\Users\Dell\flutter-development\projects\flutter_complete_guide\ios\Runner\GeneratedPluginRegistrant.h". The flutter
tool cannot access the file.
Please ensure that the SDK and/or project is installed in a location that has read/write permissions for the current
user.
Versions:
Flutter 1.22.4,
Windows 10
I tried to create a Flutter project with cmd and android-studio but the result is the same.
I gave full permissions for ALL(Including Dell user) for flutter-sdk directory, flutter project and their subdirectories also.
Once try to build project from scratch with flutter create myapp
get next error
PS C:\src1\project> flutter create myapp
Recreating project myapp...
myapp\android\app\src\main\res\mipmap-mdpi\ic_launcher.png (created)
Failed to send crash report due to a network error: SocketException: OS Error: Access is denied.
, errno = 5, address = clients2.google.com, port = 63568
Oops; flutter has exited unexpectedly: "FileSystemException: Cannot copy file to 'C:\src1\project\myapp\android\app\src\main\res\mipmap-mdpi\ic_launcher.png', path =
'C:\src1\flutter\packages\flutter_tools\templates\app\android.tmpl\app\src\main\res\mipmap-mdpi\ic_launcher.png' (OS Error: Access is denied.
, errno = 5)".

Flutter failed to write to a file at
"C:\Users\Dell\flutter-development\projects\flutter_complete_guide\ios\Runner\GeneratedPluginRegistrant.h". The flutter
tool cannot access the file.
Please ensure that the SDK and/or project is installed in a location that has read/write permissions for the current
user.
Make sure that you have ownership rights over the flutter installation folder. Check this out.
OS Error: Access is denied.
, errno = 5
Error 5: Access denied is a known issue on Windows 10. This error
prevents you from installing software on your computer and accessing
or modifying certain files.
The reason for this issue is the non-availability of the permissions.
Windows 10 will prevent you from installing if you don’t have the
Administrator privileges or if your account is not the administrator
account.
Getting administrator privileges for your account on the computer solves this problem.

I spent 5 days just to fix this issue.
i reset my windows 10 and it didn't work.
i upgrade to windows 11 and hoping it might takeover the permission
or anything, but still didn't work.
until i tried to backup my flutter project to google drive and then
redownload it. it ends up work.
i guess to fix this issue you just need to reset the folder attribute by recreating every file. and in my case through cloud storage.

Error:Failed to complete Gradle execution. Cause: CreateProcess error=5, Access is denied

I tried running the app I created in android studio 2.3.3 using genymotion android emulator, but there was an error. The Error says this
Error: Failed to complete Gradle execution. Cause: CreateProcess error
= 5, Access is denied
Previously I've used genymotion android emulator to run apps made in android studio and have no problem. But this time there is an error like the above, I think this is not from the code I use
Can someone help me?

In my case it is caused because of my security application, happens by blocking some gradle operation ...informing as ransomware.

Yes in my case it is caused by AVG antivirus program blocking some operation, uninstall it works for me

Titanium permission denied building for Google Play Store

I have a problem where by I get a permission denied error when trying to package my Titanium app for the Google Play Store. The following is outputted to the console in Titanium Studio:
[INFO] : Writing build manifest: /Users/[my_home_folder]/projects/titanium/[App name]/build/android/build-manifest.json
/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/node_modules/wrench/lib/wrench.js:481
throw err;
^
Error: EACCES, permission denied '/Users/[my_home_folder]'
at fs.mkdirSync (fs.js:654:18)
at mkdirSyncRecursive (/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/node_modules/wrench/lib/wrench.js:466:12)
at mkdirSyncRecursive (/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/node_modules/wrench/lib/wrench.js:473:17)
at mkdirSyncRecursive (/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/node_modules/wrench/lib/wrench.js:473:17)
at Object.mkdirSyncRecursive (/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/node_modules/wrench/lib/wrench.js:473:17)
at cli.on.post (/Users/[my_home_folder]/Library/Application Support/Titanium/mobilesdk/osx/3.2.3.GA/android/cli/hooks/package.js:32:40)
at /usr/local/lib/node_modules/titanium/lib/hook.js:235:13
at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:551:21
at /usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:227:13
at iterate (/usr/local/lib/node_modules/titanium/node_modules/async/lib/async.js:134:13)
I'm building for Ti SDK 3.2.3 because I'm experiencing audio glitches with more recent versions of the SDK. I can build fine for both Android and iOS emulators and have packaged the iOS copy of the app for iTunes Connect. Anyone have any idea what the problem might be? Running Ti Studio 3.4.1 and CLI version 3.4.1 on OS X 10.9.5

It was my fault, the distribution path for the build was set to a folder in my home directory however there was a typo in my home directory's name. Titanium Studio had a green tick next to the path not because it was valid but simply cuz it was non-empty.
I noticed it suddenly while looking at the logs and was quick to fix, Ti should really give a more informative error message; it wasn't a permissions error, the path didn't exist.