Dio: Undefined class 'UploadFileInfo'. Try changing the name to the name of an existing class, or creating a class with the name 'UploadFileInfo'.

[RudreshNarwal]

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Issue Info

| Info | Value | |
| ------------------------------ | ----------------------------------------------------- | ---- |
| Platform Name | e.g. flutter / ios / android | |
| Platform Version | e.g. 1.5.0 / 12.0 / 9.0 | |
| Dio Version | e.g. 2.1.0 / 1.0.17 | |
| Android Studio / Xcode Version | e.g. Android Studio 3.3.2 / Xcode 10.2.1 | |
| Repro rate | e.g. all the time (100%) / sometimes x% / only once | |
| Repro with our demo prj | e.g. does it happen with our demo project? | |
| Demo project link | e.g. link to a demo project that highlights the issue | |

Issue Description and Steps

Please fill in the detailed description of the issue (full output of any stack trace, compiler error, ...) and the steps to reproduce the issue.

[dfmiller]

UploadFileInfo and FormData.from deprecated in v3. Documentation needs to be clearer and updated. I wasted a good part of a day with this.

[AlexV525]

UploadFileInfo and FormData.from deprecated in v3. Documentation needs to be clearer and updated. I wasted a good part of a day with this.

Those has been declared loud and clear in the document https://github.com/flutterchina/dio#sending-formdata , so I guess you wasted your time for nothing.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this is still an issue, please make sure it is up to date and if so, add a comment that this is still an issue to keep it open. Thank you for your contributions.

[moho12n]

I would like to know what can I use instead of :
for (var imageFiles in list) { uploadList.add(UploadFileInfo(File(imageFiles), "job.jpg")); }

since UploadFileInfo is no more working

[AkhilSaji]

my app gets crashing when i add dio.

E/Dart (10356): ../../third_party/dart/runtime/vm/object.cc: 3738: error: Unable to use class Library:'package:dio/src/dio.dart' Class: Dio which is not loaded yet.
E/DartVM (10356): version=2.7.2 (Mon Mar 23 22:11:27 2020 +0100) on "android_arm64"
E/DartVM (10356): thread=10387, isolate=main(0x7f75392800)
E/DartVM (10356): pc 0x0000007f5ee37d78 fp 0x0000007f5d7b0e30 /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so+0x1684d78
E/DartVM (10356): -- End of DumpStackTrace
F/libc (10356): Fatal signal 6 (SIGABRT), code -6 in tid 10387 (Thread-4)

---

Build fingerprint: 'xiaomi/mido/mido:7.0/NRD90M/V11.0.2.0.NCFMIXM:user/release-keys'
Revision: '0'
ABI: 'arm64'
pid: 10356, tid: 10387, name: Thread-4 >>> com.cdz.dentcare <<<
signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
#27 pc 0000000001225b5c /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so (offset 0x1210000)
#28 pc 000000000122aa40 /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so (offset 0x1210000)
#29 pc 000000000001852c /system/lib64/libutils.so (_ZN7android6Looper9pollInnerEi+1032)
#30 pc 0000000000018074 /system/lib64/libutils.so (_ZN7android6Looper8pollOnceEiPiS1_PPv+60)
#31 pc 000000000001110c /system/lib64/libandroid.so (ALooper_pollOnce+100)
#32 pc 000000000122a9c4 /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so (offset 0x1210000)
#33 pc 0000000001225abc /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so (offset 0x1210000)
#34 pc 00000000012288fc /data/app/com.cdz.dentcare-2/lib/arm64/libflutter.so (offset 0x1210000)
#35 pc 00000000000681a4 /system/lib64/libc.so (_ZL15__pthread_startPv+196)
#36 pc 000000000001db80 /system/lib64/libc

[kutigbolahan]

I would like to know what can I use instead of :
for (var imageFiles in list) { uploadList.add(UploadFileInfo(File(imageFiles), "job.jpg")); }

since UploadFileInfo is no more working

please how did you go about it? its giving me issues?

[horiyahumaid]

I would like to know what can I use instead of :
for (var imageFiles in list) { uploadList.add(UploadFileInfo(File(imageFiles), "job.jpg")); }
since UploadFileInfo is no more working

please how did you go about it? its giving me issues?

this is the new class instead of UploadFileInfo:
MultipartFile.fromFile(file.path, filename:fileName)

[horiyahumaid]

I would like to know what can I use instead of :
for (var imageFiles in list) { uploadList.add(UploadFileInfo(File(imageFiles), "job.jpg")); }

since UploadFileInfo is no more working

this is the new class instead of UploadFileInfo:
MultipartFile.fromFile(file.path, filename:fileName)