找不到任何修复注释(参数 # 1)

我想从一个带有 Retrofit的 URL 中获取 RSS 代码，如果我在 get 注释中静态地输入 URL，那么一切都没问题，但是如果使用动态 URL，我会得到一个错误。

我的接口服务:

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

调用 getRss 方法:

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());
}

我得到以下错误:

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

注意: 我给 proguard.cfg添加了下面一行，但是没有用

-keep class retrofit.** { *; }
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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/

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

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最佳答案

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.

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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);
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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.

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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.

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

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

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

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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.

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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?>
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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.

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(Kotlin) I solved here:

//@FormUrlEncoded // Don't used
@POST("orders")
fun saveOrders(@Body orders: Orders): Call<OrdersResponse>
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In my case I used Retrofit 2.5.0 instead of the newest version. Update to 2.9.0 and thing went fine again.

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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
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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

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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'
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You need to include @Body if you are doing post


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