Failed to precompile flutter_launcher_icons:main: about flutter_launcher_icons HOT 14 CLOSED

I'm getting exactly the same...looks like an incompatible XML package.

Apparently, at some point the API for the xml packaged changed: the XmlElement constructor no longer takes "attributes" and "children" as positional arguments, but only as named arguments.

There are 9 invocations of that constructor in bitmap_font.dart. Adding "attributes:" and "children:" to the second and third arguments of each call allows it to compile successfully.

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I'm getting exactly the same...looks like an incompatible XML package.
Apparently, at some point the API for the xml packaged changed: the XmlElement constructor no longer takes "attributes" and "children" as positional arguments, but only as named arguments.
There are 9 invocations of that constructor in bitmap_font.dart. Adding "attributes:" and "children:" to the second and third arguments of each call allows it to compile successfully.

can u give me some example please?

Hi fachirzalrifadhi
You need to go to the file location mentioned in error(in this case file:///home/malcolm/external_sources/flutter/.pub-cache/hosted/pub.dartlang.org/image-2.0.5/lib/src/bitmap_font.dart) and remove the last two arguments from xml constructor
To be more clear if the constuctor is like below
var node = new XML.XmlElement(new XML.XmlName('char'), attrs, []);
It will become
var node = new XML.XmlElement(new XML.XmlName('char'));
You need to do this process for all the lines which in error list which u got. Then execute the command it will work.

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I have the same issue. I fixed this by remove all the arguments except the first one.
Steps:

• Open bitmap_font.dart file with any TextEditor
• Find all the "new XML.XmlElement(" line then remove all the arguments except the first one
• Save the file
• Restart your IDE

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Yes, I have same issue

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I'm getting exactly the same...looks like an incompatible XML package.

Apparently, at some point the API for the xml packaged changed: the XmlElement constructor no longer takes "attributes" and "children" as positional arguments, but only as named arguments.

There are 9 invocations of that constructor in bitmap_font.dart. Adding "attributes:" and "children:" to the second and third arguments of each call allows it to compile successfully.

can u give me some example please?

from flutter_launcher_icons.

I have the same issue. I fixed this by remove all the arguments except the first one.
Steps:

• Open bitmap_font.dart file with any TextEditor
• Find all the "new XML.XmlElement(" line then remove all the arguments except the first one
• Save the file
• Restart your IDE

can u give me the example please?

from flutter_launcher_icons.

I'm getting exactly the same...looks like an incompatible XML package.
Apparently, at some point the API for the xml packaged changed: the XmlElement constructor no longer takes "attributes" and "children" as positional arguments, but only as named arguments.
There are 9 invocations of that constructor in bitmap_font.dart. Adding "attributes:" and "children:" to the second and third arguments of each call allows it to compile successfully.

can u give me some example please?

Hi fachirzalrifadhi
You need to go to the file location mentioned in error(in this case file:///home/malcolm/external_sources/flutter/.pub-cache/hosted/pub.dartlang.org/image-2.0.5/lib/src/bitmap_font.dart) and remove the last two arguments from xml constructor
To be more clear if the constuctor is like below
var node = new XML.XmlElement(new XML.XmlName('char'), attrs, []);
It will become
var node = new XML.XmlElement(new XML.XmlName('char'));
You need to do this process for all the lines which in error list which u got. Then execute the command it will work.

isn't still work

from flutter_launcher_icons.

I'm getting exactly the same...looks like an incompatible XML package.
Apparently, at some point the API for the xml packaged changed: the XmlElement constructor no longer takes "attributes" and "children" as positional arguments, but only as named arguments.
There are 9 invocations of that constructor in bitmap_font.dart. Adding "attributes:" and "children:" to the second and third arguments of each call allows it to compile successfully.

can u give me some example please?

Hi fachirzalrifadhi
You need to go to the file location mentioned in error(in this case file:///home/malcolm/external_sources/flutter/.pub-cache/hosted/pub.dartlang.org/image-2.0.5/lib/src/bitmap_font.dart) and remove the last two arguments from xml constructor
To be more clear if the constuctor is like below
var node = new XML.XmlElement(new XML.XmlName('char'), attrs, []);
It will become
var node = new XML.XmlElement(new XML.XmlName('char'));
You need to do this process for all the lines which in error list which u got. Then execute the command it will work.

isn't still work

had same issue for me. IT worked. Have you replaced it in all lines mentioned in your error log? If still not working post the error which you are getting.

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fixed i've tried delete some args to be like this on bitmap_font.dart

` XML.XmlDocument _parseTextFnt(String content) {
var children = <XML.XmlNode>[];
var pageList = <XML.XmlNode>[];
var charList = <XML.XmlNode>[];
var kerningList = <XML.XmlNode>[];
var charsAttrs;
var kerningsAttrs;

List<String> lines = content.split('\n');

for (String line in lines) {
  if (line.isEmpty) {
    continue;
  }

  List<String> tk = line.split(' ');
  switch (tk[0]) {
    case 'info':
      var attrs = _parseParameters(tk);
      var info = new XML.XmlElement(new XML.XmlName('info'));
      children.add(info);
      break;
    case 'common':
      var attrs = _parseParameters(tk);
      var node = new XML.XmlElement(new XML.XmlName('common'));
      children.add(node);
      break;
    case 'page':
      var attrs = _parseParameters(tk);
      var page = new XML.XmlElement(new XML.XmlName('page'));
      pageList.add(page);
      break;
    case 'chars':
      charsAttrs = _parseParameters(tk);
      break;
    case 'char':
      var attrs = _parseParameters(tk);
      var node = new XML.XmlElement(new XML.XmlName('char'));
      charList.add(node);
      break;
    case 'kernings':
      kerningsAttrs = _parseParameters(tk);
      break;
    case 'kerning':
      var attrs = _parseParameters(tk);
      var node = new XML.XmlElement(new XML.XmlName('kerning'));
      kerningList.add(node);
      break;
  }
}

if (charsAttrs != null || charList.isNotEmpty) {
  var node = new XML.XmlElement(new XML.XmlName('chars'));
  children.add(node);
}

if (kerningsAttrs != null || kerningList.isNotEmpty) {
  var node = new XML.XmlElement(new XML.XmlName('kernings'));
  children.add(node);
}

if (pageList.isNotEmpty) {
  var pages = new XML.XmlElement(new XML.XmlName('pages'));
  children.add(pages);
}

var xml = new XML.XmlElement(new XML.XmlName('font'));
var doc = new XML.XmlDocument([xml]);

return doc;

}`

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seems to be related to brendan-duncan/image#89

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even I faced the same issue, I tried removing the extra arguments but it doesn't work

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Currently away atm but will be back this weekend and I'll try and investigate this issue then

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This has been patched in the master branch of brendan-duncan/image.

You could temporarily point your flutter_launcher_icons package to Github to get the latest patch.

# ~/.pub-cache/hosted/pub.dartlang.org/flutter_launcher_icons-0.7.0/pubspec.yaml

image:
  git:
    url: https://github.com/brendan-duncan/image.git

Perform a pub get and you'll be able to generate launcher icons again.

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I think this should be working fine now. Looks like the xml package developer published an update which caused a ripple effect causing some issues with packages which depended on it.

I tried switching the image dependency to the commit which merged the PR for the fix in the image package but that no longer seems to be working, so whenever I removed my changes and tested the package, it worked fine for me.

Let me know if anyone is still having issues otherwise I'll close this issue.

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