ProcesException: Permissino denied

[glennmichaelmejias]

i want to install and able to run git on my flutter app.

Unhandled Exception: ShellException(git, error: ProcessException: Permission denied E/flutter ( 1432): Command: git , workingDirectory: /) E/flutter ( 1432): #0 Shell.runExecutableArguments (package:process_run/shell.dart:297:7)

[alextekartik]

Thanks for the report. Can you specify on which platform you are (MacOS requires some xcode setting to allow spawning binaries) to see how I can reproduce the issus? This simple test works for me (event run inside a flutter app:

import 'package:process_run/shell.dart';

Future main() async {
  var shell = Shell();
  await shell.run('git --version');
}

Make sure you using the latest version of process_run. It seems you are using / as the working directory which could be the issue too.

[glennmichaelmejias]

@alextekartik thanks for reply. how to change working directory?

[alextekartik]

There is a working directory argument in Shell.

// Specify a directory
var shell = Shell(workingDirectory: '/home');

// Change directory
shell = shell.cd('/other_dir');

[glennmichaelmejias]

i am using flutter in android

here is my full code

import 'package:process_run/shell.dart';

import 'package:flutter/material.dart';

class TerminalWindow extends StatefulWidget {
  @override
  _TerminalWindowState createState() => _TerminalWindowState();
}

class _TerminalWindowState extends State<TerminalWindow> {

  @override
  void initState() {
    // TODO: implement initState

    super.initState();

  }

  void onInput(String input) {
    print('input: $input');

  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.blueGrey,

      floatingActionButton: FloatingActionButton(
        onPressed: (){

         testing();

        },
      ),
    );
  }
}

void testing()async{
 var shell = Shell(workingDirectory: "/home");
  await shell.run('git --version');
}

when i try to run it says

 [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: ShellException(git --version, error: ProcessException: No such file or directory
E/flutter (10839):   Command: git --version, workingDirectory: /home)
E/flutter (10839): #0      Shell.runExecutableArguments (package:process_run/shell.dart:297:7)

[alextekartik]

Some questions:

• Again Can you specify on which platform you are ?
• Is git in your path when running the application ? (you can print(await which('git')))
• Does the folder '/home' exists ?
• Which version of process_run are you using? (please use latest)
• Does it work in a regular dart program like I write above

[glennmichaelmejias]

• i am using android
• when i try print(await which('git')); it says null
• i don't know, where should i put working directory should i put it on my assets folder in flutter project?
• i am using process_run: ^0.10.12+2
• it can work with echo

[alextekartik]

i am using android

Ok that's the reason, there is no git client on Android

i don't know, where should i put working directory

Use path_provider to get a correct location

[glennmichaelmejias]

okay thank you. can i use apt get install git? i want to create a window similar to termux

[alextekartik]

can i use apt get install git?

I don't think so. Although android based on Linux I don't think you have access to any debian install tool

[glennmichaelmejias]

what if i will put the executables on the directory that i can access? and run it with ./git is it possible?

[alextekartik]

what if i will put the executables on the directory that i can access? and run it with ./git is it possible?

Yes.

[glennmichaelmejias]

okay thank you so much. i will try.

[arzakmiftakhul]

How about this issue? I can run some scripts just using await shell.run() on Lineage OS for raspberry pi 4 (konstakang) without working directory setting. But I can't use it on Android 9 for Radxa Zero. It always show the error

E/flutter: [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: ShellException(dart --version, error: ProcessException: Permission denied
      Command: dart --version, workingDirectory: /)

Which working directory should it be? Even just run simple script await shell.run("ls"), I got same error.

[alextekartik]

I'm don't think you can run any system command on Android for security reason. You might be able to bundle an executable then extract it in a folder you have write access to (use path_provider to find the location) and run it from here. However this package mainly target Desktop (as mentioned in the README.md) and I never tested on mobile yet.

[arzakmiftakhul]

I'm don't think you can run any system command on Android for security reason. You might be able to bundle an executable then extract it in a folder you have write access to (use path_provider to find the location) and run it from here. However this package mainly target Desktop (as mentioned in the README.md) and I never tested on mobile yet.

Thanks for this great library. I've installed Lineage OS android 11 on raspberry 4 from Konstakang. I can run system command for example copy/move file from Document folder to connected flash disk, check device temperature, reboot device, etc. But I get an error when I run on Radxa Zero device. Both were rooted devices.