No Retrofit annotation found. (parameter #1)

Question

I want get RSS code from a URL with Retrofit and if I enter url staticly in the get annotation everything is OK but with dynamic url I get an error.

My interface service :

public interface AllNewsService {
@GET("/fa/rss/{url}")
void getRss( @Path("url") String nGroup ,  Callback<AllNewsRss> callback);}

And calling getRss method :

DataGetter dg = new DataGetter();
    dg.get().getRss("allnews" ,new Callback<AllNewsRss>() {
        @Override
        public void success(AllNewsRss allNewsRss, Response response) {
            Log.d(TAG,"success");
        }

        @Override
        public void failure(RetrofitError error) {
            Log.d("*********",error.toString());
        }

I get the following error:

retrofit.RetrofitError: AllNewsService.getRss: No Retrofit annotation found. (parameter #1)

Note: I added below line to proguard.cfg but it didn't work

-keep class retrofit.** { *; }

You should verify your request code, all retrofit request annotations should be there and well formatted. Check more here: https://readyandroid.wordpress.com/no-retrofit-annotation-found-retrofit/ — Ready Android, Jun 08 '18 at 08:47

score 343 · Answer 1 · answered Mar 12 '15 at 14:10

343

My problem was that I had the @POST annotation, but forgot the @Body annotation for the parameter.

answered Mar 12 '15 at 14:10

David Vávra

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Unfortunately this won't work with /@Query annotation, since you will get an error: **retrofit.RetrofitError: /@Body parameters cannot be used with form or multi-part encoding. (parameter #1)** – IgorGanapolsky Apr 30 '15 at 15:58
2

god you're a time saver. thanks dude. due to fast development I forgot that annotation too. – Maher Nabil Apr 29 '17 at 17:13
1

Also an issue with @PUT – Lou Morda Feb 12 '18 at 17:51
saving lives even years later, cheers ;) – JustSightseeing Jul 27 '22 at 14:30
yeah , here my eyes not gone ..... sometime we forgot small things – Surajkaran Meghwanshi Jul 26 '23 at 10:35

score 57 · Accepted Answer · answered Aug 13 '15 at 06:30

57

Addition to Destil's answer

Make sure the parameters you pass to the retrofit interface methods(i.e callbacks, headers, body ) are only belongs to retrofit package. e.g. Not custom callbacks that you want on your own.

answered Aug 13 '15 at 06:30

NullPointerException

3,978
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make sure it belongs to the *right* retrofit package too. In my case I had accidentally imported an annotation from retrofit instead of retrofit2 – Jan K Jan 13 '17 at 18:32

Irshu · Answer 3 · 2015-12-23T03:35:47.493

22

Also make sure you add @Query or @Field for all the parameters , depending on whether you issuing GET/POST.

eg:

@GET("/api/Books/GetAll")
void GetRecentBooks(@Query int Offset, Callback<List<Book>> cb);

edited Dec 23 '15 at 03:35

answered Dec 23 '15 at 02:20

Irshu

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score 10 · Answer 4 · answered Nov 20 '19 at 13:01

It's way too late, but i just faced the same issue. I was using retrofit 2.5.0 with 'deferred' and 'await' on my retrofit interface and viewModel. And I read from retrofit github that from 2.6.0 deferred is deprecated and we can switch from deferred to 'suspend'. before i moved my retrofit version up, i just simply changed from deferred to suspend and run it, and got the same error. I solved it by moving my retrofit version from 2.5.0 to 2.6.0.

My point is that maybe there may be a chance that current retrofit version in your app doesn't support the way you use retrofit in your retrofit related classes or interfaces.

This is it! Updating from 2.5 to 2.6 solved it for me, thanks to you! — waseefakhtar, Jul 14 '20 at 19:49

score 9 · Answer 5 · answered Jun 03 '19 at 14:23

9

My problem was that I am using Kotlin coroutines and used 'suspend' in the Retrofit GET method. Just remove it and everything works fine.

answered Jun 03 '19 at 14:23

MrVasilev

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To be more precise, you should remove "suspend" keyword. Thanks. – Ruslan Leshchenko Aug 20 '19 at 07:10
did not work for me an it says could not create adapter! – Jose Sep 22 '19 at 15:30
I faced the same problem. So how can we use suspend on api service functions? – Abraham Mathew Jul 10 '20 at 08:57

Alberto M · Answer 6 · 2019-01-28T10:25:51.227

7

I had the @Post annotation but forgot the @Field and @FormUrlEncoded annotations

edited Jan 28 '19 at 10:25

answered Jul 27 '16 at 08:28

Alberto M

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score 7 · Answer 7 · answered Oct 06 '22 at 16:29

7

You need to include @Body if you are doing post

answered Oct 06 '22 at 16:29

Richard Kamere

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10

score 4 · Answer 8 · answered Jul 13 '20 at 11:56

4

(Kotlin) I solved here:

//@FormUrlEncoded // Don't used
@POST("orders")
fun saveOrders(@Body orders: Orders): Call<OrdersResponse>

answered Jul 13 '20 at 11:56

Infomaster

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You were getting the error because you forgot to add @ Field annontation to your parameter and used @ FormUrlEncoded – P1NG2WIN Dec 24 '20 at 00:10

score 3 · Answer 9 · answered Feb 06 '15 at 17:38

You probably forgot to initialise adapter first, as mentioned in retrofit api:

RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint("https://api.github.com")
.build();
GitHubService service = restAdapter.create(GitHubService.class);

http://square.github.io/retrofit/

score 3 · Answer 10 · answered Aug 21 '20 at 17:01

3

In my case I used Retrofit 2.5.0 instead of the newest version. Update to 2.9.0 and thing went fine again.

answered Aug 21 '20 at 17:01

ngoson

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score 2 · Answer 11 · answered Feb 19 '16 at 15:13

2

Please check the Path class you are using and make sure that the package is retrofit2.http.Path instead of org.simpleframework.xml.Path. It is a common Retrofit annotation mistake.

answered Feb 19 '16 at 15:13

Francesco Florio

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score 2 · Answer 12 · answered May 21 '17 at 00:13

2

Remove from retrofit interface all parameters that not belong to this.

answered May 21 '17 at 00:13

lucasddaniel

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score 2 · Answer 13 · answered May 01 '21 at 10:30

2

make sure you add all dependencies required:

implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation 'com.squareup.okhttp3:logging-interceptor:4.5.0'

answered May 01 '21 at 10:30

erhan

31
4

this one resolved my issue – Vivek Kumar Srivastava Jul 12 '22 at 04:51

score 1 · Answer 14 · answered Mar 15 '16 at 17:39

1

In my case, I just forgot to remove Callback parameter for the service call when I start using retrofit 2. Make sure you didn't do the silly mistake I did.

answered Mar 15 '16 at 17:39

Sfseyhan

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score 1 · Answer 15 · answered Mar 11 '20 at 05:00

I forgot to add @Field("")

Previously

   @POST("/api/verify-phone")
    @FormUrlEncoded
    fun sendOTP(phone_number: String): Observable<SignInResponse?>

Fixed

@POST("/api/verify-phone")
@FormUrlEncoded
fun sendOTP(@Field("phone")phone_number: String): Observable<SignInResponse?>

score 1 · Answer 16 · answered Mar 24 '20 at 09:47

1

This happened to me when I was using suspend functions in the network service interface like so.

interface Service {
    @GET("chapters")
    suspend fun fetchChapters() : List<NetworkChapter>

I solved it by doing 2 things. 1. Using Gson instead of Moshi library. Remove moshi converter from retrofit and use Gson converter. 2. Removing coroutine converter factory from retrofit. I think this one was the main problem.

answered Mar 24 '20 at 09:47

GilbertS

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I am having same problem what do you think main case – Yodgorbek Komilov Mar 02 '22 at 15:35
@YodgorbekKomilov I'll need to see your code first before I can advise – Gilbert Mar 03 '22 at 17:22
1

@Gilbert I have fixed issue – Yodgorbek Komilov Mar 03 '22 at 17:23

score 1 · Answer 17 · answered Jan 23 '21 at 11:37

1

Actual problem for me was old okhttp. Getting same error even updating retrofit to 2.6.0.

okhttp_version = "3.12.1"//remove
okhttp_version = "4.4.0"//works

answered Jan 23 '21 at 11:37

AskQ

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score 0 · Answer 18 · answered Mar 30 '21 at 16:29

0

In my case I use @Post and @body but use multiple options instead a class when I use give object instead of parameters it solves my problems

answered Mar 30 '21 at 16:29

Shojaeddin

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No Retrofit annotation found. (parameter #1)

18 Answers18

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