gulp -demo1 error

Hello,

When I run gulp --demo1 for asp.net core, I get the following error. I use Metronic 8.2.3 is the latest version and Windows 11 Pro. I tried it on a MacBook Pro and got the same error. How can I solve this?"

Thank you,

Mustafa

Using gulp config file: "../../gulp.config.js"
[16:31:00] Using gulpfile C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\gulpfile.js
[16:31:00] Starting 'default'...
[16:31:00] Starting 'cleanTask'...
[16:31:00] Finished 'cleanTask' after 68 ms
[16:31:00] Starting 'buildBundleTask'...
[16:31:00] Finished 'buildBundleTask' after 122 ms
[16:31:00] Finished 'default' after 195 ms
Error in plugin "sass"
Message:
node_modules\prism-themes\themes\prismjs.bundle.css
Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'
C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:6365
throw error;
^

Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'
at Object.wrapException (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:2166:43)
at Object._failedAsCheck (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:3646:15)
at Rti._generalAsCheckImplementation [as _as] (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:3635:9)
at ArrayIterator.get$current (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:32948:50)
at Object.get$current$x (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:830:43)
at _SyncStarIterator.moveNext$0 (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:35808:41)
at Object.List_List$from (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:6379:49)
at Object.List_List$unmodifiable (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:6402:47)
at Object._parseImporter (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:27302:51)
at C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:27068:22 {
dartException: <ref *1> PluginError: TypeError: null: type 'JSNull' is not a subtype of type 'String'
at Object.wrapException (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:2166:43)
at Object._failedAsCheck (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:3646:15)
at Rti._generalAsCheckImplementation [as _as] (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:3635:9)
at ArrayIterator.get$current (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:32948:50)
at Object.get$current$x (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:830:43)
at _SyncStarIterator.moveNext$0 (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:35808:41)
at Object.List_List$from (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:6379:49)
at Object.List_List$unmodifiable (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:6402:47)
at Object._parseImporter (C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:27302:51)
at C:\Users\MustafaHepsarilar\source\repos\UI\testUI\metronic_asp.net-core_v8.2.3\Starterkit\_keenthemes\tools\node_modules\sass\sass.dart.js:27068:22 {
formatted: "Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'",
status: 3,
messageFormatted: '\x1B[4mnode_modules\\prism-themes\\themes\\prismjs.bundle.css\x1B[24m\n' +
"Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'",
messageOriginal: "TypeError: null: type 'JSNull' is not a subtype of type 'String'",
relativePath: 'node_modules\\prism-themes\\themes\\prismjs.bundle.css',
message: 'node_modules\\prism-themes\\themes\\prismjs.bundle.css\n' +
"Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'",
__safety: undefined,
_stack: undefined,
plugin: 'gulp-dart-sass',
showProperties: true,
showStack: false,
domainEmitter: PassThrough {
_events: {
close: [Function: onclose],
error: undefined,
prefinish: [Function: prefinish],
finish: [Function: onfinish],
drain: undefined,
data: [Function: ondata],
end: [
[Function: bound onceWrapper] { listener: [Function: onend] },
[Function: onend]
],
readable: undefined,
unpipe: [Function: remove]
},
_readableState: ReadableState {
highWaterMark: 16,
buffer: [],
bufferIndex: 0,
length: 0,
pipes: [
Sink {
_events: [Object],
_writableState: [WritableState],
_maxListeners: undefined,
_eventsCount: 4,
[Symbol(shapeMode)]: true,
[Symbol(kCapture)]: false
}
],
awaitDrainWriters: null,
[Symbol(kState)]: 194521357
},
_writableState: WritableState {
highWaterMark: 16,
length: 0,
corked: 0,
onwrite: [Function: bound onwrite],
writelen: 0,
bufferedIndex: 0,
pendingcb: 0,
[Symbol(kState)]: 17580301,
[Symbol(kBufferedValue)]: null
},
allowHalfOpen: true,
_maxListeners: 0,
_eventsCount: 6,
add: [Function: add],
isEmpty: [Function: isEmpty],
[Symbol(shapeMode)]: true,
[Symbol(kCapture)]: false,
[Symbol(kCallback)]: null
},
domainThrown: false,
'$cachedTrace': _StackTrace {
_exception: [Circular *1],
_trace: "Error: TypeError: null: type 'JSNull' is not a subtype of type 'String'\n" +
' at Object.wrapException (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:2166:43)\n' +
' at Object._failedAsCheck (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:3646:15)\n' +
' at Rti._generalAsCheckImplementation [as _as] (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:3635:9)\n' +
' at ArrayIterator.get$current (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:32948:50)\n' +
' at Object.get$current$x (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:830:43)\n' +
' at _SyncStarIterator.moveNext$0 (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:35808:41)\n' +
' at Object.List_List$from (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:6379:49)\n' +
' at Object.List_List$unmodifiable (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:6402:47)\n' +
' at Object._parseImporter (C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:27302:51)\n' +
' at C:\\Users\\MustafaHepsarilar\\source\\repos\\UI\\testUI\\metronic_asp.net-core_v8.2.3\\Starterkit\\_keenthemes\\tools\\node_modules\\sass\\sass.dart.js:27068:22'
}
}
}

Node.js v20.11.0

Mustafa Hepsarilar 2 years ago

Asp.Net Core

3 Answers

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Replies (3)

nick smith 2 years ago

It sounds like you're encountering a consistent issue across different platforms. One potential solution is to ensure all your dependencies are up-to-date and properly configured. Additionally, sometimes hidden files can cause issues, so make sure to check for them. For help with this on a Mac, you can refer to this guide on how to make hidden files permanently visible This might help you identify any hidden configurations causing the problem.

Lauris Stepanovs Author 2 years ago

Hi,

Thank you for your feedback.

A conflict with the latest version of the dart-sass plugin likely causes this error. Try adding the following code to your package.json:

"resolutions": {

 "gulp-dart-sass/sass": "1.70.0"

}

After adding this, remove the node_modules, package-lock.json, and yarn.lock files, and then run yarn and gulp --demo1 again. This should force the use of Dart Sass version 1.70.0 and resolve any conflicts with the latest version of the 3rd party plugin.

Let me know if you need further assistance

Regards,
Lauris Stepanovs,
Keenthemes Support Team

Chris Sain 2 years ago

I had the same problem and this solution worked for me. Thank you

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gulp -demo1 error

Replies (3)

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