Build an APK (Estimote Android SDK 1.+)

BLE Beacons
1

If I try to build an signed apk, I always get an error:

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 java.nio.file.Files
Warning:okio.Okio: can't find referenced class java.nio.file.Path
Warning:okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning:okio.Okio: can't find referenced class java.nio.file.Path
Warning:okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning:okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning:okio.Okio: can't find referenced class java.nio.file.Path
Warning:okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning:okio.Okio: can't find referenced class java.nio.file.Path
Warning:okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning:okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning:okio.Okio$4: can't find referenced class javax.annotation.Nullable
Warning:okio.RealBufferedSource: can't find referenced class javax.annotation.Nullable
Warning:okio.Segment: can't find referenced class javax.annotation.Nullable
Warning:okio.SegmentPool: can't find referenced class javax.annotation.Nullable
Warning:okio.package-info: can't find referenced class javax.annotation.ParametersAreNonnullByDefault
Warning:retrofit2.Platform$Java8: can't find referenced class java.lang.invoke.MethodHandles$Lookup
Warning:retrofit2.Platform$Java8: can't find referenced class java.lang.invoke.MethodHandle
Warning:retrofit2.Platform$Java8: can't find referenced class java.lang.invoke.MethodHandles
Warning:retrofit2.Platform$Java8: can't find referenced class java.lang.invoke.MethodHandle
Warning:retrofit2.Platform$Java8: can't find referenced class java.lang.invoke.MethodHandles$Lookup
Warning:retrofit2.Platform$Java8: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning:there were 37 unresolved references to classes or interfaces.

I think, it has something to do with proguard.

my rules for estimote in proguard-rules.txt are:

-keep class com.estimote.sdk.** { *; }
-keep interface com.estimote.sdk.** { *; }
-dontwarn com.estimote.sdk.**

I only migrated from 0.16.0 to 1.0.12 and now I always get this error.
Should I correct my proguard-rules?

2

Yes, you should update your proguard rules, since package name has changed from com.estimote.sdk to com.estimote.coresdk. Management functions has been moved to com.estimote.mgmtsdk (you don’t need to include them anymore if you don’t need them).
Simplest solution will be to extend rules to cover com.estimote.*.

3

my rules are now:

-keep class com.estimote.coresdk.** { *; }
-keep interface com.estimote.coresdk.** { *; }
-dontwarn com.estimote.coresdk.**

but I still get the error.

4

I fixed the problem:

-dontwarn okhttp3.**
-dontwarn okio.**

-dontnote retrofit2.Platform
-dontwarn retrofit2.Platform$Java8