CODEWITHSUNDEEP
jsondartflutterjson-serialization
flutteria
flutteria

Reputation: 181

Generate a Json Serializable Generator using Build Runner in Flutter: Response is Succeeded, but no output is being generated

I have an issue when trying to generate a Json Serializable Generator using Build Runner in Dart. First, I tried to do run flutter packages pub run build_runner build to generate Json Serializable but it showed that it has a conflicting issue. So I run command --delete-conflicting-outputs, to solve the conflicting issue.

After that I tried to run flutter packages pub run build_runner build again to regenerate the Json value. But the result that i got is like this:

succeeded with no outputs

So the output was : [INFO] Succeeded after 137ms with 0 outputs (0 actions)

I get so stressed because of it because all of generated-files were deleted. can somebody tell me what was happening and how to solve this issue?

I have been checking everywhere but still haven't found an answer.

Upvotes: 4

Views: 16650

Answers (7)

Aritra Adhikary
Aritra Adhikary

Reputation: 1

With latest flutter version JUST RUN THIS

dart pub run build_runner watch -d

watch ⇾ is for detect the changes automatically and generate. build ⇾ is for one time generate.

-d is previously refer as "--delete-conflicting-output"

If you are using fvm (Flutter Version Management) then just do this

fvm dart pub run build_runner watch -d

Upvotes: 0

WizardsOfWor
WizardsOfWor

Reputation: 3144

For me, it was ignoring my class because I forgot to include the part declaration, so the class was skipped.

part 'vehicle.g.dart';

Upvotes: 0

Priyanshi Pandya
Priyanshi Pandya

Reputation: 47

Try this:

dart run build_runner build --delete-conflicting-output

Upvotes: 0

Mohi Dev
Mohi Dev

Reputation: 3386

You should update your pubspec

dependencies:
  # Your other regular dependencies here
  json_annotation: <latest_version>

dev_dependencies:
  # Your other dev_dependencies here
  build_runner: <latest_version>
  json_serializable: <latest_version>

then run flutter pub run build_runner build

Upvotes: 2

gowthaman C
gowthaman C

Reputation: 502

flutter pub run build_runner watch --delete-conflicting-outputs

Upvotes: 11

Baker
Baker

Reputation: 28010

For me it was not having the files underneath the /lib or /bin directories.

Checklist

Here's a checklist of things to check when Json_serializable generator has succeeded with no outputs, but no files are generated.

Upvotes: 0

ammar188
ammar188

Reputation: 73

Make sure the name of the .g.dart is written properly.

I ran into the same issue came here looking for a solution and when did not find one I noticed the name of the file to be generated is case sensitve.

Upvotes: 0

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