Question

我想生成已签名的APK，我已经编译了＆＃39; com.squareup.okhttp3：okhttp：3.8.1＆＃39;。
但它发生了一些问题。它看起来像是关于＆＃34; okhttp＆＃34;问题。我不知道如何解决它。我研究了许多信息，但它似乎很少有关于此的信息。

消息：

Information:Gradle tasks [:app:assembleFreeRelease]
Warning:okhttp3.Address: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Authenticator: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Cache: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Cache$2: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Cache$CacheResponseBody: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Cache$Entry: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.CacheControl: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.CertificatePinner: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Challenge: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Connection: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.ConnectionPool: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.ConnectionSpec: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.ConnectionSpec$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Cookie: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Dispatcher: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.FormBody: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Handshake: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Headers: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.HttpUrl: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.HttpUrl$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Interceptor$Chain: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.MediaType: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.MultipartBody: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.MultipartBody$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.MultipartBody$Part: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.OkHttpClient: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.OkHttpClient$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Request: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Request$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.RequestBody: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.RequestBody$1: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.RequestBody$2: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.RequestBody$3: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Response: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Response$Builder: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.ResponseBody: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.ResponseBody$1: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.Route: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.WebSocket: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.internal.cache.CacheStrategy: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.internal.cache.DiskLruCache: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.internal.cache.DiskLruCache$Snapshot: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.internal.connection.RealConnection: can't find referenced class javax.annotation.Nullable
Warning:okhttp3.package-info: can't find referenced class javax.annotation.ParametersAreNonnullByDefault
Warning:okio.AsyncTimeout: can't find referenced class javax.annotation.Nullable
Warning:okio.Buffer: can't find referenced class javax.annotation.Nullable
Warning:okio.BufferedSource: can't find referenced class javax.annotation.Nullable
Warning:okio.ByteString: can't find referenced class javax.annotation.Nullable
Warning:okio.DeflaterSink: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning:okio.HashingSink: can't find referenced class javax.annotation.Nullable
Warning:okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning:okio.Okio$4: can't find referenced class javax.annotation.Nullable
Warning:okio.RealBufferedSource: can't find referenced class javax.annotation.Nullable
Warning:okio.Segment: can't find referenced class javax.annotation.Nullable
Warning:okio.SegmentPool: can't find referenced class javax.annotation.Nullable
Warning:okio.package-info: can't find referenced class javax.annotation.ParametersAreNonnullByDefault
Warning:there were 169 unresolved references to classes or interfaces.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForFreeRelease'. Job failed, see logs for details
Information:BUILD FAILED
Information:Total time: 9.693 secs
Information:1 error
Information:58 warnings
Information:See complete output in console

如何解决此问题？

Answer 1

minifyEnabled中的build.gradle似乎设为真所以它正在应用proguard规则。所以你应该把这个规则添加到你的proguard-rules.pro文件

-dontwarn okio.**
-dontwarn com.squareup.okhttp3.**
-keep class com.squareup.okhttp3.** { *; }
-keep interface com.squareup.okhttp3.** { *; }
-dontwarn javax.annotation.Nullable
-dontwarn javax.annotation.ParametersAreNonnullByDefault

Answer 2

您可能会对代码进行模糊处理，检查build.gradle文件并确保参数minifyEnabled设置为false，以免混淆您的代码，

看起来应该是这样的：

release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
...
        }

编译并检查问题是否已解决，如果您想了解有关android代码混淆的更多信息，请发表评论。

Answer 3

我也遇到这个错误。我已通过在proguard中添加以下代码来解决此问题。

-dontwarn okio.**
-dontwarn okhttp3.**
-dontwarn com.squareup.okhttp3.**
-keep class com.squareup.okhttp3.** { *; }
-keep interface com.squareup.okhttp3.** { *; }

Answer 4

您应该将这些行添加到proguard文件中：

-dontwarn okio.**
-dontwarn javax.annotation.Nullable
-dontwarn javax.annotation.ParametersAreNonnullByDefault

当我生成签名APK时，我遇到了一个问题

4 个答案: