Error Code 1: Cordova FileTransfer Writing Issue

Question

Error Code 1: Cordova FileTransfer Writing Issue

In my Android application using Cordova 4.2.0, I am experiencing challenges with getting the FileTransfer plugin to function correctly. It seems like there might be an error in the code.

exception:".myApp\/contentImages\/20150110220101.jpg: open failed: ENOENT (No such file or directory)"

The filename has been verified and it does not exist yet:

rootFS.getFile('.myApp/contentImages/'+file,{create:false},
    function(){
        console.log(file+' already exists');
    },
    function(error){
        console.log(file+" does not exist locally");
        console.log("Error #"+error.code);
        download(file);
    }
);

Below is the code for the download function:

function download (filename){
    var localPath = rootFS.fullPath+'/.myApp/contentImages/'+filename;
    var fileTransfer = new FileTransfer();
    fileTransfer.download(
        encodeURI('http://distantApp/contentImages/'+filename), // This file exists
        localPath,
        function(entry) {
            console.log("download complete: " + entry.fullPath);
        },
        function (error) {
            console.log('download error: ' + error.code + ": "+error.exception+" ; source " + error.source+" ; target " + error.target);
        }
    );
}

I am trying to identify what could potentially be causing the issue.

EDIT Code snippet for rootFS:

function onDeviceReady(){
    window.requestFileSystem  = window.requestFileSystem || window.webkitRequestFileSystem;
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, function(){
        console.log("error requesting LocalFileSystem");
    });
}
function gotFS(fileSystem) {
    console.log("got filesystem: "+fileSystem.name); // displays "persistent"
    console.log(fileSystem.root.fullPath); // displays "/"
    window.rootFS = fileSystem.root;
}

javascript android cordova file-transfer cordova-plugins

Answer 1

Answer №1

An issue arose due to an update of Cordova from an older version.

The issue stemmed from the incorrect identification of local file paths: .fullPath has been deprecated and should be substituted with .toURL().

Answer 2

An issue arose due to an update of Cordova from an older version.

The issue stemmed from the incorrect identification of local file paths: .fullPath has been deprecated and should be substituted with .toURL().

Answer 3

Answer №2

Perhaps the issue lies not with the FileTransfer plugin, but rather with how you are attempting to verify the existence of the file.

Upon reviewing this resource: http://www.html5rocks.com/en/tutorials/file/filesystem/, it becomes evident that trying to access a file when its immediate parent does not exist will result in an exception:

When working within the callback function, using fs.root.getFile() to create a file is possible. It is important to provide a valid path—whether absolute or relative. Creating a file whose direct parent does not exist will generate an error.

It is worth considering whether the issue stems from non-existent parent directories for your file, such as .myapp and contentImages.

Answer 4

Perhaps the issue lies not with the FileTransfer plugin, but rather with how you are attempting to verify the existence of the file.

Upon reviewing this resource: http://www.html5rocks.com/en/tutorials/file/filesystem/, it becomes evident that trying to access a file when its immediate parent does not exist will result in an exception:

When working within the callback function, using fs.root.getFile() to create a file is possible. It is important to provide a valid path—whether absolute or relative. Creating a file whose direct parent does not exist will generate an error.

It is worth considering whether the issue stems from non-existent parent directories for your file, such as .myapp and contentImages.

Answer 5

Answer №3

Issue code 1 may be related to accessibility problems. In my scenario, the issue stemmed from file permission issues. If you are using an SDK version lower than 29 (Android 10), it is necessary to prompt the user for read/write permissions.

Include cordova-plugin-android-permissions in your config.xml file

const filesPermissions = (permissions) => [
 permissions.READ_EXTERNAL_STORAGE,
 permissions.WRITE_EXTERNAL_STORAGE,
];

const checkFilesPermissions = async () => {
  const { permissions } = window.cordova.plugins;
  return Promise.all(filesPermissions(permissions).map(permission => {
    return new Promise((resolve, reject) => permissions.checkPermission(permission, resolve, reject));
  })).then(statuses => statuses.every(status => status.hasPermission));
};

const requestFilesPermissions = async () => {
    const { permissions } = window.cordova.plugins;
    return new Promise((resolve, reject) => {
        permissions.requestPermissions(filesPermissions(permissions), resolve, reject);
  }).then(status => status.hasPermission);
};

// Handle onClick event:

if (deviceService.isAndroidPlatform()) {
  try {
    let hasFilesPermissions = await checkFilesPermissions();
    if (!hasFilesPermissions) {
      hasFilesPermissions = await requestFilesPermissions();
    }
    if (!hasFilesPermissions) {
      throw new Error('Insufficient permissions to download files. Please enable them in system preferences');
    }
  } catch (error) {
    alert(error.message)
  }
}

// Proceed with downloading your file using cordova-plugin-file-transfer as usual

Note: Ensure that you have enabled READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE in your AndroidManifest.xml file

Answer 6

Issue code 1 may be related to accessibility problems. In my scenario, the issue stemmed from file permission issues. If you are using an SDK version lower than 29 (Android 10), it is necessary to prompt the user for read/write permissions.

Include cordova-plugin-android-permissions in your config.xml file

const filesPermissions = (permissions) => [
 permissions.READ_EXTERNAL_STORAGE,
 permissions.WRITE_EXTERNAL_STORAGE,
];

const checkFilesPermissions = async () => {
  const { permissions } = window.cordova.plugins;
  return Promise.all(filesPermissions(permissions).map(permission => {
    return new Promise((resolve, reject) => permissions.checkPermission(permission, resolve, reject));
  })).then(statuses => statuses.every(status => status.hasPermission));
};

const requestFilesPermissions = async () => {
    const { permissions } = window.cordova.plugins;
    return new Promise((resolve, reject) => {
        permissions.requestPermissions(filesPermissions(permissions), resolve, reject);
  }).then(status => status.hasPermission);
};

// Handle onClick event:

if (deviceService.isAndroidPlatform()) {
  try {
    let hasFilesPermissions = await checkFilesPermissions();
    if (!hasFilesPermissions) {
      hasFilesPermissions = await requestFilesPermissions();
    }
    if (!hasFilesPermissions) {
      throw new Error('Insufficient permissions to download files. Please enable them in system preferences');
    }
  } catch (error) {
    alert(error.message)
  }
}

// Proceed with downloading your file using cordova-plugin-file-transfer as usual

Note: Ensure that you have enabled READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE in your AndroidManifest.xml file

Error Code 1: Cordova FileTransfer Writing Issue

Answer №1

Answer №2

Answer №3

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