Update platform_specific_instructions.md

Author: ashitaprasad

Diff for: doc/dev_guide/platform_specific_instructions.md

@@ -44,16 +44,21 @@ For more information on multidex support, you can refer to the Android developer
 
 ### Web  
 
-If you're building a Flutter app for the web using the `printing` package, you may encounter a build error like:  
+If you're building a Flutter app for the web, you may encounter a build error like:  
 
 ```
-Error: A value of type 'JSString' can't be assigned to a variable of type 'String'.
+Launching lib/main.dart on Chrome in debug mode...
+../../../.pub-cache/hosted/pub.dev/printing-5.13.4/lib/printing_web.dart:218:16: Error: 
+A value of type 'JSString' can't be assigned to a variable of type 'String'.
+              .toJS;
+               ^
+Failed to compile application.
 ```
 
 This happens because `.toJS` is no longer required for converting Dart strings to JavaScript strings in recent Dart versions.  
 
 **Fix:**  
-Update the `printing_web.dart` file in the `printing` package by removing `.toJS` from:  
+Update the `printing_web.dart` file in the cached `printing` package by removing `.toJS` as done in the PR [here](https://github.com/DavBfr/dart_pdf/pull/1739/files)
 
 ```dart
 script.innerHTML =
@@ -67,5 +72,4 @@ script.innerHTML =
     '''function ${_frameId}_print(){var f=document.getElementById('$_frameId');f.focus();f.contentWindow.print();}''';
 ```
 
-This fix ensures compatibility with the latest Dart runtime. For more details, refer to [GitHub Issue #1791](https://github.com/DavBfr/dart_pdf/issues/1791).
 Read more about it here - https://github.com/DavBfr/dart_pdf/issues/1791