Flutter - Running flutter fails, Could not find a file named “pubspec.yaml”, Update - (OS Error: Access is denied. , errno = 5)

I just solved all the necessary dependencies.

Building flutter tool...
Running pub upgrade...
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, v0.7.3, on Microsoft Windows [Version 10.0.17134.228], locale en-US)
[√] Android toolchain - develop for Android devices (Android SDK 28.0.2)
[√] Android Studio (version 3.1)
[√] IntelliJ IDEA Community Edition (version 2018.2)
[√] Connected devices (1 available)


Now when I try running the flutter app on Android Studio I get this.

A:\Project\flutter_app>flutter run
fatal: Not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
Running "flutter packages get" in flutter_app...
Could not find a file named "pubspec.yaml" in "C:\".
pub get failed (66)


Does anyone know what to do to resolve this issue?

[Update 2 hours later]

I deleted flutter and reinstalled in *C:\flutter* using the git repo
https://github.com/flutter/flutter.git

Now the error I am getting is this

A:\Project\flutter_app>flutter run
fatal: Not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
Running "flutter packages get" in flutter_app...
Cannot open file, path = '.\pubspec.lock' (OS Error: Access is denied.
, errno = 5)
pub get failed (66)


Update: I tried using verbose when running flutter packages upgrade -v and got this

C:\flutter\flutter_app>flutter packages upgrade -v
fatal: Not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
[ +31 ms] executing: [C:\Users\Nick\flutter\] git rev-parse --abbrev-ref --symbolic @{u}
[ +76 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ +1 ms] origin/beta
[ ] executing: [C:\Users\Nick\flutter\] git rev-parse --abbrev-ref HEAD
[ +45 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ +1 ms] beta
[ ] executing: [C:\Users\Nick\flutter\] git ls-remote --get-url origin
[ +38 ms] Exit code 0 from: git ls-remote --get-url origin
[ +9 ms] https://github.com/flutter/flutter.git
[ ] executing: [C:\Users\Nick\flutter\] git log -n 1 --pretty=format:%H
[ +38 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ +1 ms] 3b309bda072a6b326e8aa4591a5836af600923ce
[ +7 ms] executing: [C:\Users\Nick\flutter\] git log -n 1 --pretty=format:%ar
[ +37 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar
[ +1 ms] 9 days ago
[ ] executing: [C:\Users\Nick\flutter\] git describe --match v*.*.* --first-parent --long --tags
[ +41 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ +1 ms] v0.7.3-0-g3b309bda0
[ +170 ms] Running "flutter packages upgrade" in flutter_app...
[ +10 ms] executing: [C:\flutter\flutter_app\] C:\Users\Nick\flutter\bin\cache\dart-sdk\bin\pub.bat --verbosity=warning --verbose upgrade --no-precompile
[+16555 ms] Cannot open file, path = '.\pubspec.lock' (OS Error: Access is denied.
[ +1 ms] , errno = 5)
[ +46 ms] Running "flutter packages upgrade" in flutter_app... (completed)
[ +15 ms] "flutter upgrade" took 16,687ms.
pub upgrade failed (66)

#0 throwToolExit (package:flutter_tools/src/base/common.dart:26:3)
#1 pub (package:flutter_tools/src/dart/pub.dart:170:5)
<asynchronous suspension>
#2 pubGet (package:flutter_tools/src/dart/pub.dart:104:13)
<asynchronous suspension>
#3 PackagesGetCommand._runPubGet (package:flutter_tools/src/commands/packages.dart:59:11)
<asynchronous suspension>
#4 PackagesGetCommand.runCommand (package:flutter_tools/src/commands/packages.dart:82:11)
<asynchronous suspension>
#5 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:356:18)
#6 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#7 _rootRunUnary (dart:async/zone.dart:1132:38)
#8 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#9 _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#10 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#11 Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#12 Future._complete (dart:async/future_impl.dart:476:7)
#13 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#14 _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#15 _rootRun (dart:async/zone.dart:1124:13)
#16 _CustomZone.run (dart:async/zone.dart:1021:19)
#17 _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#18 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#19 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#20 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#21 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)


Created GitHub issue https://github.com/flutter/flutter/issues/21495

Update: Not much has improved

@pskink asked me to create a new app in an empty directory while using verbose

Output:

C:\flutter>flutter create flutter_app -v
fatal: Not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
Multiple output directories specified.
Try moving -v to be immediately following create

#0 throwToolExit (package:flutter_tools/src/base/common.dart:26:3)
#1 CreateCommand.runCommand (package:flutter_tools/src/commands/create.dart:106:7)
<asynchronous suspension>
#2 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:356:18)
#3 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#4 _rootRunUnary (dart:async/zone.dart:1132:38)
#5 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#6 _FutureListener.handleValue (dart:async/future_impl.dart:129:18)
#7 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:642:45)
#8 Future._propagateToListeners (dart:async/future_impl.dart:671:32)
#9 Future._complete (dart:async/future_impl.dart:476:7)
#10 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#11 _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#12 _rootRun (dart:async/zone.dart:1124:13)
#13 _CustomZone.run (dart:async/zone.dart:1021:19)
#14 _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#15 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#16 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#17 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#18 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)


I assume this is caused by and outdated Git client.

Please ensure you only have one Git client in your PATH and that it is in a recent version.

I found a temporary solution. When I run the same command on Power Shell as an administrator it doesn't show any error.

PS C:\flutter\flutter_app> flutter packages get
fatal: not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
Running "flutter packages get" in C:\... 16.1s
PS C:\flutter\flutter_app> flutter packages upgrade
fatal: not a git repository (or any of the parent directories): .git
Building flutter tool...
Running pub upgrade...
Running "flutter packages upgrade" in C:\... 86.9s