My flutter project is run smoothly in my old laptop. But when I use my new laptop, my flutter project can't run in debug mode.
This error
FAILURE: Build failed with an exception.
* What went wrong:
Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the User Manual chapter on the daemon at https://docs.gradle.org/5.6.2/userguide/gradle_daemon.html
Process command line: C:\Program Files (x86)\Java\jre1.8.0_221\bin\java.exe -Xmx1536M -Dfile.encoding=windows-1252 -Duser.country=US -Duser.language=en -Duser.variant -cp C:\Users\ajoris\.gradle\wrapper\dists\gradle-5.6.2-all\9st6wgf78h16so49nn74lgtbb\gradle-5.6.2\lib\gradle-launcher-5.6.2.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 5.6.2
Please read the following process output to find out more:
-----------------------
Error occurred during initialization of VM
Could not reserve enough space for 1572864KB object heap
Picked up JAVA_TOOL_OPTIONS: -Djava.vendor="Sun Microsystems Inc."
* Try:
Run 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.
Is there something missing in the settings on my new laptop? I tried to clean project, upgrade flutter but always fail. Sorry for new
What actually worked for me is, In windows 10 just turn off your mobile hotspot and run the app again. I think it's a glitch/bug in windows 10.
The solution to this problem is deactivating windows hotspot before running build or app compilation.
Don't delete anything or file, just build the app with mobile hotspot turned off.'
its a windows 10 bug that start without any reason. i refreshed my windows and this started
Flutter or Android Applications
The general steps I would use are:
run flutter doctor in terminal
if you are using an emulator make sure it has enough space (often it needs a restart to clear junk files created upon consecutive deploys)
if the gradle files have been modified it is recommended to open them with Android Studio (Android folder of the application). If anything is missing the IDE will prompt you to install the missing dependencies.
Hope it helps
I tried all the above methods but sadly none of them worked. What eventually worked for me was too simple.
first try all the suggested solutions here and if it doesn't work
try to disable mobile firewall, actually I discovered that it's a windows 10 bug because disabling mobile hotspot just until you build or compile your project then you can reenable it without any problem .
Step 1: Open the Registry Editor on your Windows 10 computer. To do this, just press the Windows + R keys on your keyboard. In the Run dialog box, type “Regedit” and hit enter. This will open the Registry Editor window.
Step 2: In the Registry Editor, navigate to the following location:
HKEY_LOCAL_MACHINE SOFTWARE Policies Microsoft WindowsNetwork Connections
Step 3: In the Network Connections key, on the right-side pane, right-click anywhere in the empty area and select New > DWORD (32-bit) Value.
Step 4: Name the newly created registry “NC_ShowSharedAccessUI” and keep its value as “0” to disable the Mobile Hotspot feature on your laptop.
Step 5: To enable the feature, just change the value of the NC_ShowSharedAccessUI registry from 0 to 1 and the feature will be enabled again.
When the functionality has been disabled, the feature will still appear in the Network & Internet settings but it cannot be enabled or configured. To use the feature, the registry needs to be edited again and enable the functionality.
It looks like a memory problem.
In your project folder, Go to android/gradle.properties.
Change the line
From:
org.gradle.jvmargs=-Xmx1536M
To:
org.gradle.jvmargs=-Xmx1024M
Save the gradle.properties file and try to run debugging again.
That Worked for me :)
Usually it Is bcoz of the .gradle file in C:drive.
1.Locate to the .gradle folder (usually in C:\users\your_username)
2.Delete the .gradle folder once located.
2.Locate to your flutter project folder
2.Locate to android
3.Run gradlew clean
4.Run gradlew build
5.now run your app...It worked for me
I tried all the above methods but sadly none of them worked. What eventually worked for me was simple.
There has been a lot of problem with emulator configuration and sometimes it crashes for a lot of reasons. For the above problem what I recommend is, delete the current emulator but remember the settings like API version and all and make a new emulator.
This worked for me fine!
I'll post what solved for me.
flutter clean
flutter run
Close Android studio
Delete your ".gradle" folder
Open android studio as administrator and allow project to build.
For my case i had --no-sound-null-safety in the Dart: Flutter Additional Args ( go to vscode settings under extensions dart ). I deleted it, deleted the web folder in the project ( i was working on the app only ) then reloaded vscode. the error was gone afterwards
go to C:\Program Files\nodejs
Open npm, npm.cmd, npx, npx.cmd
then change the prefix -g to prefix --location=global
still if this did not work,
go to android studio click on build, then click clear project.
I also faced this issue and this step resolved problem. Still if this did not work out let me know.
Non of the solution in here worked for me. running my vscode or android studio as an administrator solved the problem.
Go to file/setting/build,execution,deployment/gradle, and there where Gradle user home: pass static address.
For example, my address is C:/Users/Admin/.gradle.
After applying if runs OK.
There is a simple solution.
Uninstall the app from your device .
Then restart the PC .
First of all Uninstall the application from emulator.
then wipe all data from the emulator.
Sometimes turning off mobile hotspot will do the work.
After turning off if not work then restart the pc or a laptop. Don't turn on mobile hotspot and run flutter run.
Related
I am tried to solve this issue in VSCode, flutter. I tried all possible solutions, and it works for few days then again same thing happens.
here is what i tried:
1-
changed in gradle.properties the following line
org.gradle.jvmargs=-Xmx1536m
to
org.gradle.jvmargs=-Xmx1024m
and
org.gradle.jvmargs=-Xmx512m
2-
changed in gradle-wrapper.properties the following line
distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
to
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
3-
delete the emulator and make the new one
4-
free some space
I have windows 10 in my pc and, 64-bit operating system. please let me know if anyone can resolve this issue.
The general steps I would use are:
run flutter doctor in terminal
if you are using an emulator make sure it has enough space (often it needs a restart to clear junk files created upon consecutive deploys)
if the gradle files have been modified it is recommended to open them with Android Studio (Android folder of the application). If anything is missing the IDE will prompt you to install the missing dependencies.
I'm new to learning flutter when I try to crate a new project on android studio gives me a arror message in the event section enter image description here
The MESSAGE: [Could not find an option named "platforms". Run 'flutter -h' (or 'flutter -h') for available flutter commands and options.]
And another problem is flutter doctor does not see the android studio enter image description here
1(By the way, I want to use this version of flutter, please do not give a suggestion like update.)
2(this problem did not exist before, it happened after turning my computer off and on)
And sorry for my english mistakes
Thank you.
flutter version flutter_windows_v1.12.13+hotfix.9-stable
andorid studio version: 4.1.3
Is this the answer to your question about andorid studio?
and you need to install JDK
You are using the wrong flutter SDK. Too low information in your question. Make sure that you have the right path to flutter SDK in your IDE. Check that the flutter SDK directory has the appropriate structure, all needed files and cetera. Channel and version of flutter also may have an influence on this problem.
Got this today out of nowhere. Things were going well, but suddenly when I tried to relaunch the app from fresh, for the error Could not find an option named "target"
UPDATE:
This appears to happen when I switch branches and merge while app is running/flutter is attached. If you're using VS Code,
open your launch.json
change something, I decided to change type: "dart" to type: "notdart"
save
try to debug which fails
then revert that change.
This should fix the issue.
Previous Answer/If you're not using VS Code
What worked for me was to
flutter clean
close the editor (VS Code for me)
close the emulator
give a minute for things to close down
open task manager and kill any left over processes of dart.exe flutter.exe and java.exe and adb.exe (was doing Android)
start VS Code/Android Studio and try to debug again. (when prompted I chose to cold boot the emulator as well)
This takes a while as the emulator has to cold boot and since flutter clean was run, the compilation hadto start from scratch as well.
I have a serious issue trying to install flutter... The pub upgrade when you run flutter doctor have being running for the past one hour on my system... I have being stuck with this issue since yesterday i don't know what the exact problem is... I have tried installing via Android Studio and through command line... It ends up getting stuck at "Running Pub Upgrade"...
Here are a few things you can try,
Close Android studio,
Open Task Manager and see if any Dart/Flutter services are running, if yes then close them.
Clear cache from flutter/bin folder.
and now run again.
I was a able to solve this problem, by downloading the flutter zip file in the flutter website, adding flutter/bin directory to my environment variables Path, restarting my system and running flutter doctor...
I also encountered the same problem, but I solved it using another computer,
what I did was;
I cleared my cache folder in flutter/bin folder
then I copied the folder containing flutter SDK into another computer *C:* drive so the folder was like C:\src\flutter on the other computer(which was windows also), opened the folder, opened flutter console, and run flutter doctor. it worked fine on that computer, everything was in place, so I copied that same folder again back into my computer, replacing all exiting files and run flutter doctor on my computer and it worked for me.
I also had this problem. It was stuck on "Running pub upgrade..." for more than 24 hours.
On this GitHub thread someone solved it by turning Anti-virus shields off. [https://github.com/flutter/flutter/issues/61719][1] (Stuck at Running pub upgrade)
This solved the issue for me. I closed Windows PowerShell, and turned off Avast Anti-virus shields. I re-opened Windows PowerShell, ran flutter doctor and all went through perfectly with no issues.
I'm trying to install Flutter on my Windows 8 computer. I unzipped files to C:/flutter and added the bin folder to the path variable. However I am stuck on the step where I have to run flutter doctor in flutter_console. The Flutter doctor hangs and only shows the blinking cursor and no output. More interestingly any other flutter command will freeze the exact same way.
I have already tried
Running flutter console as admin
Reinstalling flutter
Installing the dev version
Use the VS code plugin to run flutter doctor
But they all led to the same result
So the solution of this issue is:
delete folder in your flutter SDK path flutter/bin/cache (detail info here)
run flutter doctor -v again will trigger downloading Dart SDK
PS: if your network is slow because of in china, check bellow:
Do things bellow in terminal maybe speed up your the download speed (for me it's speed up 3x) for changing channel:
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn (detail info here)
flutter channel stable (one example of change flutter channel)
flutter doctor -v (trigger downloading SDK)
Albeith in win10, these steps solved the issue for me (do not know if all are necessary)
restart win
run cmd as administrator
flutter doctor
According to this git issue, this is mostly caused by installing flutter in a directory for which you do not own the priviledges. For example, the Program Files folder: to solve then, you can try to move the installation folder
Problem
I had the same problem while trying to reinstall flutter using the recommended windows install guide found here https://docs.flutter.dev/get-started/install/windows
(flutter_windows_3.3.9-stable).
All flutter commands would hang and only show the flashing cursor. It did not matter if I was in the flutter console, PowerShell, VS Code terminal or Admin Command prompt.
This made running flutter doctor impossible, and thus I couldn't complete the flutter setup.
Environment
I am using a PC running Windows 10.
I am located in North America. (If you are in China, you may need to use a proxy server for the initial download).
Flutter was installed on a drive with ample free space in a non-restricted folder.
I have a stable internet connection.
I have git for windows installed and have set up my ssh keys. (you can download and install this form here https://git-scm.com/download/win).
I have my Windows Firewall and network protection on. (You may need to turn off third party firewalls or add a rule to them allowing flutter to make connections to the internet during the flutter setup).
Solution
This solution worked for me and should resolve most install problems related to installing flutter on a Windows environment.
Please upvote if it works for you.
Step 0 - Remove flutter from system:
If reinstalling flutter, do this step, otherwise move to step 1 if preforming a fresh installation.
Open file explorer and delete the folder titled flutter if already installed.
Type environment variables into the windows search bar and open Edit the system environment variables.
Click environment variables in the Advanced tab.
Double-click the word Path found under User variables for {YOUR USER NAME}.
Select any entries that end with \flutter or \flutter\bin and delete them.
Click the Ok button and then the Ok button to apply the changes.
Step 1 - Download Stable Flutter Version:
Go to the official flutter website https://docs.flutter.dev/development/tools/sdk/releases and download the most recent flutter version in the Stable channel (Windows).
Once downloaded, unzip the folder.
Place the flutter folder found inside the Zip file wherever you would like to store it on your computer. Flutter recommend putting it in C:\src\flutter. You can place it where've you like as long as It's not in a folder that requires elevated privileges to access, such as the C:\Program Files\ folder.
Note* I used Windows Explorer to unzip the file, however others report used 7-Zip file Manager for unzipping solved their problem.
Step 2 - Setup Environment Variables:
Type environment variables into the windows search bar and open Edit the system environment variables.
Click environment variables in the Advanced tab.
Double-click the word Path found under User variables for {YOUR USER_NAME}.
Click Browse... and navigate to where you placed the flutter folder. Then navigate to the bin file inside the flutter folder and click ok.
A new environment variable should have been added that looks like C:\src\flutter\bin.
You also need to make sure Git\bin\cmd, Git\bin\git.exe and, C:\Windows\System32\WindowsPowerShell\v1.0\ system environment paths are setup. These were post likely configured during your git for windows install.
Follow the "Update your path section" found here https://docs.flutter.dev/get-started/install/windows if this doesn't work for you.
Note* If Path doesn't exist, click new... and set variable name to Path and Variable value to the file path of your bin folder found in the flutter folder you just unzipped.
Step 3 - Reboot your computer in Safe Mode with Networking:
Press the Windows key + I on the keyboard to open Settings, or type settings in the windows search bar.
Click Update & Security and on the left pane select Recovery.
Under Advanced Startup, click Restart Now.
After the computer restarts, on the Choose an Option screen, select Troubleshoot > Advanced Options > Startup Settings > Restart.
After the computer restarts, a list of options appears. Select 5 or F5 for Safe Mode with Networking or whatever key your computer says to boot into Safe Mode with Networking.
Step 4 - Launch Administrator Command Prompt:
After rebooting, type command prompt into the windows search bar.
Right-click the application icon and click Run as administartor.
Run the following commands, flutter pub cache repair then flutter doctor -v. This might take quite some time if you have poor internet, as it will re-downloads every package in the cache.
If flutter doctor reports any red or yellow warnings with your environment, you need to resolve these first before continuing. These are quite common, and a Google search of the error or warning should solve your problem.
Note* if the command flutter is unrecognized, this means you didn't set up your environment path variables in step 2 correctly.
Step 5 - Reboot and run your project
Now that flutter doctor has run in safe mode, we can restart the computer and get out of safe mode.
Open your flutter project in Visual Studio Code.
Open a terminal window under terminal > new Terminal.
run the command, git config --global --add safe.directory C:/src/flutter make sure you use forward / and set the file path to wherever you saved your flutter folder. This can also be run from the administrator command prompt if you don't have VS Code or a flutter project.
Then run flutter doctor -v in the VS Code terminal to make sure everything is working.
Now we need to rebuild all of our packages and dependencies, run the following list of commands in order.
flutter clean
flutter pub cache repair
flutter pub get
flutter pub upgrade --major-versions
Troubleshooting
These are other solutions I noticed on stack overflow while trying to solve the problem for myself. These didn't work for my situation, but may help you solve yours.
Flutter doctor, running very slowly. Try deleting the cache folder found in, C:\src\flutter\bin\cache\ then running flutter doctor -v again. Flutter doctor hangs on start, no output
If you are in China. Download flutter through a mirror site.
Try installing a different type of unzip program (like 7-zip).
Make sure you are using the Stable flutter channel.
Make sure your path variables are set up correctly.
getting error "Waiting for another flutter command to release the startup lock" Use task manager to forcibly close any flutter or dart programs.
Can't delete old flutter folder, in use for some reason. Restart and immediately delete the folder.
Make sure flutter isn't installed in a folder that requires admin privileges to access, such as C:\Program Files\.
Make sure you have git for windows installed and have set up your ssh keys.
Add the Flutter and Dart extensions to VS Code.
Add the flutter and Dart plugins to Android Studio.
Delete the cache folder inside bin folder of the flutter sdk then run flutter doctor it should work now.
I'm running this on Windows 7 SP1 with most (if not all) current patches. I have administrative permissions on this machine.
The first time I ran VSCodeSetup.exe, it ran the installer for several minutes then launched the actual application.
I got called into a surprise meeting, so I closed it thinking I'd look at it again later.
However, when I returned to my computer and tried to launch it, I found no evidence that it was actually installed... no desktop icon, no entry in the start menu, no Explorer integration...
I tried running VSCodeSetup.exe again, but all it does it show the installer screen for a split second, which then vanishes.
Since then, I've tried the suggestions outlined in VSCode Installation Failed - Failed to extract installer to install the application, even going so far as to run Update.exe --uninstall followed by running VSCodeSetup.exe again, but nothing has worked.
I even tried disabling my antivirus software and running the installer again, to no avail.
Does anyone know what I can do to get VSCode working again?
According to the comments and answers to Install VSCode in a specific folder, Visual Studio Code installs itself to %LOCALAPPDATA%\Code on Windows.
While I'm not sure why it didn't register itself with Explorer, I can at least create a shortcut to %LOCALAPPDATA%\Code\bin\code.cmd (with icon %LOCALAPPDATA%\Code\app.ico) to get it working again.
Or remove the directory entirely and run VSCodeSetup.exe to install it again, which still doesn't add Explorer integration... but this time at least the PATH now has code in it.
On windows VSCode is installed as Code.exe and its located in your
C:\Users\<windows-user>\AppData\Local\Code\app-<version-number>\Code.exe
or
C:\Users\John\AppData\Local\Code\app-0.5.0\Code.exe