cometchat / chat-sdk-android

Text Chat SDK for Android

CometChat SDK for Android

The CometChat SDK is a robust toolkit that developers can utilize to swiftly incorporate a reliable and fully-featured chat functionality into an existing or new application. It removes the complexity of building a chat infrastructure from scratch, thus accelerating the development process and reducing time to market.

Prerequisites

• Android 5.0, API 21 and above

Getting Started

To set up Android SDK and utilize CometChat for your chat and calls functionality, you'll need to follow these steps:

• Register at the CometChat Dashboard to create an account.
• After registering, log into your CometChat account and create a new app. Once created, CometChat will generate an Auth Key and App ID for you. Keep these credentials secure as you'll need them later.
• Check the key concepts to understand the basic components of CometChat.
• Refer to the Integration Steps in our documentation to integrate the SDK into your Android app.

Help and Support

For issues running the project or integrating with our SDK, consult our documentation or create a support ticket or seek real-time support via the CometChat Dashboard.

chat-sdk-android's Issues

[2.0.1] Audio/Video Call shows blank screen on network loss while call is running.

Describe the bug
After connectivity loss, call view freezes for something like 10 seconds, and during this time if network appears the call is reconnected, but after this 10 seconds call view entirely disappears with no callback, and you can not reconnect to call anymore. Is there any workaround or fix for this problem?

Expected behavior

Call must reconnect again after connection re-established or show some error if call is terminated.

Actual behavior

Calling screen shows blank black screen after connection lost while call is running.

Enviorment/Platfrom (please complete the following information):

• CometChat SDK Version[ 2.0.1]

[1.8.3] Incorrect Text Message validation with Message Type MESSAGE_TYPE_IMAGE

Describe the bug
While Sending a text message with messageType MESSAGE_TYPE_IMAGE it shows: A file input is required for the message type image under category message instead of showing that text message requires MESSAGE_TYPE_TEXT as messageType

To Reproduce
Steps to reproduce the behavior:

1. Login with UID
2. Send Text Message with messageType MESSAGE_TYPE_IMAGE

Expected behavior

Exception showing text message requires MESSAGE_TYPE_TEXT as messageType under
category message

Actual behavior

A file input is required for the message type image under category message

Enviorment/Platfrom (please complete the following information):

• Android API Version[ Android 7.1.1 || API-25]
• CometChat SDK Version[1.8.3]

Logs (Error Logs)

• Error Log
  A file input is required for the message type image under category message
• Debug Log
  A file input is required for the message type image under category message

[2.0.2] Multiple Calls handling in the SDK

Describe the bug
When on a one to one call and a group call comes in the background

To Reproduce
Steps to reproduce the behavior:

1. User A calls User B
2. User B answers the call
3. User A and User B are connected
4. Either user A or User B receives a group call
5. You call the rejectCall method with the status set as CALL_STATUS_BUSY from the onIncomingCallReceived() callback of the CallListener
6. The group call is rejected with Busy status
7. User A tries to end the Call with User B.
8. User B and User A both dont receive events for the call ended

Expected behavior
Group Call must be rejected. And one-to-one call should continue and should be ended correctly

Actual behavior

No end call events received when the one-to-one call is ended

[1.8.3] Validation required in request Builder classes such as UsersRequest , GroupRequest , MessageRequest

Describe the bug
Null or random values can be set in the current Request Builder classes

To Reproduce
Example

UsersRequest usersRequest=new UsersRequest.UsersRequestBuilder().setLimit(100)
                    .setUserStatus(null)
                    .setSearchKeyword("iron Man").build();

UsersRequest usersRequest=new UsersRequest.UsersRequestBuilder().setLimit(0)
                                                   .setSearchKeyword("iron Man").build();

Expected behavior
Should have given an error or warning on setting null values or other than required

Actual behavior
returns result even after setting null values in the builder

Enviorment/Platfrom (please complete the following information):

• Android API Version[Android 5.1 || API 22 ]
• CometChat SDK Version[1.8.3]

Logs (Error Logs)

• Error Log
  No error log

[SDK-Version] 1.8 Pull Message

Describe the bug
When pulling the message,return fetching failed with exception: Request Already in Progress

Mute issue with audio calls

Connected audio call always stay with mute state. Not able to unmute for conversation.

Dependency used:

implementation ('com.cometchat:pro-android-chat-sdk:1.7.+') {
        configurations {
            compile.exclude module: 'gson'
            compile.exclude module: 'okhttp'
            compile.exclude module: 'okio'
        }
    }

Hello Comet, I am facing problem sometimes while using your Chat SDK. Please check this error and let us know.

2019-09-09 17:04:43.337 11366-11366/co.speakto.advisor E/ActivityThread: Activity co.speakto.advisor.Activities.ChatActivity has leaked IntentReceiver com.cometchat.pro.core.NetworkChangeReceiver@9c5b6d3 that was originally registered here. Are you missing a call to unregisterReceiver()?
android.app.IntentReceiverLeaked: Activity co.speakto.advisor.Activities.ChatActivity has leaked IntentReceiver com.cometchat.pro.core.NetworkChangeReceiver@9c5b6d3 that was originally registered here. Are you missing a call to unregisterReceiver()?
at android.app.LoadedApk$ReceiverDispatcher.(LoadedApk.java:1159)
at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:946)
at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1330)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1310)
at android.app.ContextImpl.registerReceiver(ContextImpl.java:1304)
at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:586)
at com.cometchat.pro.core.CometChat.(CometChat.java:437)
at com.cometchat.pro.core.CometChat.init(CometChat.java:406)
at co.speakto.advisor.Activities.ChatActivity.onCreate(ChatActivity.java:101)
at android.app.Activity.performCreate(Activity.java:6672)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1140)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2612)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1473)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6123)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)

calls not working on Android 10 (version 2.0.6)

calls keep disconnecting only on Android 10 only

works fine on iOS & Android 5.0.2 & Android 8.0 & Android 9.0

[1.8.8] Inconsistency in naming for action message for Scope changed

Describe the bug*
On Android, we get "System made Joe Doe admin" text
On iOS, we get "Joe Doe's scope changed from participant to participant" text

Expected behavior
Action message should be the same.

Actual behavior
getting different action message for the same action.

Customization in calling UI

Describe the issue

Features Added and Improvement

1. Customizable UI.
2. Ability to switch between multiple audio sources.
3. Easy integration and full backward compatibility.
4. Ability to customize the default UI.

[2.0.2] Custom message on delete returns null

Describe the bug
Custom message on delete returns null

To Reproduce

1. send this:
   val customMessage = CustomMessage(convId, receiverType, “Location”, customData)

2. delete it
   and this method below in receiver’s side will get null message
   CometChat.addMessageListener(“message_listener”, object : CometChat.MessageListener() {
   override fun onMessageDeleted(message: BaseMessage?) {
   Timber.e(“Message Deleted ${message}”) //the message is null
   }
   })

Expected behavior

onMessageDeleted() callback must have the deleted message.

Actual behavior

onMessageDeleted() has null for the message parameter

[2.3.5] Calls are not working on some countries on Android Version Only

Describe the bug
our client from Country of Oman cannot start chat from Android only, iOS is working fine
we tried multiple WIFI networks
we've tried the same app the same phones from another country and it works fine
We've tried your sample and the same issue is happening.

here is the log
cometchat+(1).txt
here is a video
https://user-images.githubusercontent.com/25287348/124379813-d5480d80-dcc1-11eb-8e11-6ce9dd567009.mp4

[1.8.3] MUID is null in response Message

Describe the bug
While sending a text message MUID is been set but in onSucess() MUID is null in the message object

To Reproduce
Steps to reproduce the behavior:
send a text message with and set MUID in the message object

Expected behavior
Set value of MUID should be return in onSucess() response

Actual behavior
null value of MUID in onSucess()

Enviorment/Platfrom (please complete the following information):

• Android API Version[Android 7.1.1 || API 21 ]
• CometChat SDK Version[1.8.3]

Logs (Error Logs)

• No error log

Additional context
The message gets successfully sent and the MUID field returned is null

Uable to build app with comet chat lib

I am using following comet chat library
implementation 'com.cometchat:pro-android-chat-sdk:1.5.+'

I am getting following error while running the application.

error: cannot access zza
class file for com.google.android.gms.common.internal.safeparcel.zza not found

Voice Calling not working in WiFi Conncetion.

Dear Sir,

I had made voice calling an Android app but I had faced a problem
When I make a call using a WiFi connection, applications are disconnected and automatically restarted. But when I used cellular data, my app was working fine.

Please send me the solution.
Thank you

Timeout Issue while connecting to a Call

I try to call, user at the other end accept it n then the call ends automatically n im recieving this error in log
: [features/base/lib-jitsi-meet] Failed to load config from https://rtc-us.cometchat.io/config.js?room=1589886198a68b1c84efd5aae25e13ba9148eed9186e6b510c Error(Error){“message”:“timeout”}

For more information please check:

https://forum.cometchat.com/t/audio-and-video-calling-issue/1390

Problem with CustomMessage in Caching Extension

Hi, I implemented Caching Extension in Android and found some problems with CustomMessage.
When u send CustomMessage to me in “messagesRequest.fetchPrevious()” that u give me JSON like this:
CustomMessage{
subType=‘null’,
customData=null,
id=1204,
muid=‘null’,
sender=User{
uid=‘5d25c57f6bff1f68194bef43’,
name=‘Rene Voly’,
email=‘null’,
avatar=‘link_link_link’
width=1920’,
link=‘null’,
role=‘null’,
metadata=null,
credits=0,
status=‘available’,
statusMessage=‘null’,
lastActiveAt=1563008085,
hasBlockedMe=false,
isBlockedByMe=false
},
receiverUid=‘5d299b296bff1f7d1c40e544’,
type=‘custom’,
receiverType=‘group’,
category=‘custom’,
sentAt=1563008455,
deliveredAt=0,
readAt=0,
metadata={
“type”:“in_trouble.off”
}
}

but
when I insert this message to cache and try to restore it(when no internet connection) i get JSON like this:
TextMessage{
text=‘null’,
metadata={
“type”:“in_trouble.off”
},
id=1505,
muid=‘null’,
sender=User{
uid=‘5d1a14e26bff1f2bff794892’,
name=‘Stepan Revytskyi’,
email=‘null’,
avatar=‘link_link_link’
width=1920’,
link=‘null’,
role=‘null’,
metadata=null,
credits=0,
status=‘available’,
statusMessage=‘null’,
lastActiveAt=1563215143,
hasBlockedMe=false,
isBlockedByMe=false
},
receiverUid=‘5d2cc5bb6bff1f6acd137af2’,
type=‘custom’,
receiverType=‘group’,
category=‘custom’,
sentAt=1563215319,
deliveredAt=0,
readAt=0
}

I think it’s problem in your SKD, u doesn’t insert all fields in cache and that’s why system can’t cast JSON to CustomMessage.

Could not run on android studio

Trying to run this project on android studio and receiving the below error:
Could not GET 'https://dl.bintray.com/cometchat/pro/com/cometchat/pro-android-chat-sdk/2.2.1/pro-android-chat-sdk-2.2.1.pom'. Received status code 403 from server: Forbidden
Could not HEAD 'https://dl.bintray.com/cometchat/pro/com/cometchat/pro-android-calls-sdk/2.1.1/pro-android-calls-sdk-2.1.1.pom'. Received status code 403 from server: Forbidden

---

Build.gradle:
dependencies {
implementation 'com.cometchat:pro-android-chat-sdk:2.2.1'
implementation 'com.cometchat:pro-android-calls-sdk:2.1.1'
}

Metadata not getting in the Users list (v1.8.0)

[Min Sdk 19, Target Sdk 29] Unable to bind toolbar on setSupportActionBar while initClickAction

intiClickAction from settings activity to profile activity is crashing the app

To Reproduce
I'm enclosing errors in a text file
errors.txt

Expected behavior: Should open ProfileActivity from SettingsActivity

App should open profile information from support action bar by binding toolbar on it.

App is getting force stopped

When i try to open Profile activity from settings activity app is either getting restarted or crashed.

Screenshots (optional)

I'm enclosing screenshots here.

Enviorment/Platfrom (please complete the following information):

• Android API Version 29
  I'm enclosing the files below

Files (Optional)

• build.gradle (App Level)
  build.gradle.app.txt

• build.gradle (Project Level)
  build.gradle.project.txt

Logs (Error Logs)

• Error Log in Logcat
  errors.txt

• Debug Log
  debug.txt

Additional context
I'm enclosing my files here
SettingsActivityJava.txt
SettingsActivityXml.txt
ProfileActivity_xml.txt
ProfileActivityJava.txt
AndroidManifestXml.txt

[1.8.0] 64-bit Architecture support

Describe the bug
Currently, SDK is not supported for 64-bit Architecture and Google has made it compulsory for App to have 64-bit compatibility to publish app on PlayStore.

Entry name 'XPP3_1.1.4c_VERSION'

Hi
I'm getting this error

Entry name 'XPP3_1.1.4c_VERSION' collided

versions of gradle 6.5, and android_gradle_plugin 4.0.0
here is the output of gradlew app:dependencies

deps.log

+--- com.cometchat:pro-android-chat-sdk:2.0.3
|    +--- org.igniterealtime.smack:smack-android:4.1.0
|    |    +--- org.igniterealtime.smack:smack-resolver-minidns:4.1.0
|    |    |    +--- de.measite.minidns:minidns:[0.1,0.2) -> 0.1.7
|    |    |    +--- org.jxmpp:jxmpp-util-cache:0.4.2-beta1
|    |    |    \--- org.igniterealtime.smack:smack-core:4.1.0
|    |    |         +--- org.jxmpp:jxmpp-core:0.4.2-beta1
|    |    |         |    \--- org.jxmpp:jxmpp-util-cache:0.4.2-beta1
|    |    |         \--- xpp3:xpp3:1.1.4c

...

xpp3:xpp3:{strictly 1.1.4c} -> 1.1.4c (c)

about xpp3

xpp3 defines classes that conflict with classes now provided by Android. Solutions include finding newer versions or alternative libraries that don't have the same problem (for example, for httpclient use HttpUrlConnection or okhttp instead), or repackaging the library using something like jarjar

[1.8.8] No Callbacks triggered due to network loss while call in progress

Describe the bug
No Callbacks triggered due to network loss while call in progress

[2.0.0-beta4] Fatal Exception: java.lang.NullPointerException Attempt to invoke virtual method 'void org.jivesoftware.smack.AbstractXMPPConnection.addAsyncStanzaListener(org.jivesoftware.smack.StanzaListener, org.jivesoftware.smack.filter.StanzaFilter)' on a null object reference

Describe the bug
When connecting / login to cometchat

To Reproduce
com.cometchat.pro.core.XMPPConnectionService.handlePresenceSubscriptions (XMPPConnectionService.java:405)
com.cometchat.pro.core.XMPPConnectionService.access$1200 (XMPPConnectionService.java:100)
com.cometchat.pro.core.XMPPConnectionService$8.run (XMPPConnectionService.java:332)
java.lang.Thread.run (Thread.java:764)

Expected behavior
cometchat will be connect / logged

Actual behavior
force close / crash

Enviorment/Platfrom (please complete the following information):

• Android 9 (API 28)
• Cometchat version is 2.0.0-beta4

Logs (Error Logs)
com.cometchat.pro.core.XMPPConnectionService.handlePresenceSubscriptions (XMPPConnectionService.java:405)
com.cometchat.pro.core.XMPPConnectionService.access$1200 (XMPPConnectionService.java:100)
com.cometchat.pro.core.XMPPConnectionService$8.run (XMPPConnectionService.java:332)
java.lang.Thread.run (Thread.java:764)

[Feature] Expose websocket connection status

Title explains it

[2.1.0] User's Last Active time is incorrect

Describe the bug
User's Last Active time is incorrect even after updating the user last Active time

To Reproduce
Steps to reproduce the behavior:

1. Update the user status
2. Update the last active time of the said user

Expected behavior

The submitted "lastActiveAt" of the certain user should be the latest one being passed on the sdk's method
CometChat.updateUser

Actual behavior

The response of the method requests always give incorect time.
In my case it was always in year 1970

Enviorment/Platfrom (please complete the following information):

• Android API Versions: Android 10 and Android 8
• CometChat SDK Version: 2.1.0

Files (Optional)

• build.gradle (Project Level)
  implementation 'com.cometchat:pro-android-chat-sdk:2.1.0'

Logs (Error Logs)

**Response Data**:
User{uid='kenadmin', name='ken admin', avatar='https://dev.lemi.travel/avatar/kenadmin?context=chat', link='null', role='default', metadata=null, status='offline', statusMessage='null', lastActiveAt=1599662517, hasBlockedMe=false, blockedByMe=false}

**Submitted Data**:
User{uid='kenadmin', name='ken admin', avatar='https://dev.lemi.travel/avatar/kenadmin?context=chat', link='null', role='default', metadata=null, status='offline', statusMessage='null', lastActiveAt=1599662518083, hasBlockedMe=false, blockedByMe=false}

[2.0.1] Reasons for minSdkVersion 21

Just wondering what features of the CometChat SDK requires API 21 and if there are any plans on lowering it?

Since our app is currently only requiring 16, it's a somewhat big jump for us to even be able to use CometChat. As of now, seems like about 10,7% of Android users are on <21 and 6.9% are on 19, so being able to lower to at least 19 would be great.

Voice calling is only working on loudspeakers

Dear Sir,

I had made voice calling (Only audio calling) an Android app but I had faced a problem
Voice calling is only working on loudspeakers. I want audio calling without loudspeaker

Please send me the solution.
Thank you

[2.0.0-beta4] Fatal Exception: java.lang.NullPointerException Attempt to invoke virtual method 'java.lang.String org.jivesoftware.smack.AbstractXMPPConnection.getUser()' on a null object reference com.cometchat.pro.core.XMPPConnectionService.subscribeToNode

Describe the bug
When connecting / login to cometchat

To Reproduce
com.cometchat.pro.core.XMPPConnectionService.subscribeToNode (XMPPConnectionService.java:441)
com.cometchat.pro.core.XMPPConnectionService.handlePresenceSubscriptions (XMPPConnectionService.java:404)
com.cometchat.pro.core.XMPPConnectionService.access$1200 (XMPPConnectionService.java:100)
com.cometchat.pro.core.XMPPConnectionService$8.run (XMPPConnectionService.java:332)
java.lang.Thread.run (Thread.java:762)

Expected behavior
cometchat will be connect / logged

Actual behavior
force close / crash

Enviorment/Platfrom (please complete the following information):

Android 9 (API 28)
Cometchat version is 2.0.0-beta4

Logs (Error Logs)
com.cometchat.pro.core.XMPPConnectionService.subscribeToNode (XMPPConnectionService.java:441)
com.cometchat.pro.core.XMPPConnectionService.handlePresenceSubscriptions (XMPPConnectionService.java:404)
com.cometchat.pro.core.XMPPConnectionService.access$1200 (XMPPConnectionService.java:100)
com.cometchat.pro.core.XMPPConnectionService$8.run (XMPPConnectionService.java:332)
java.lang.Thread.run (Thread.java:762)

[2.1.6] My whole application start crashing just because of cometchat internal crash

Describe the bug
First of all, I'm not using comet-chat UI Kit, instead, I'm using comet-chat SDK with my own UI... Everything was working fine till the last 2 days.. but today (after the weekend) when I'm sending any message or receiving any calls etc, my application is being crashed with an error

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equalsIgnoreCase(java.lang.String)' on a null object reference
at com.cometchat.pro.core.CometChat$1$1.run(CometChat.java:95)
at android.os.Handler.handleCallback(Handler.java:899)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:238)
at android.app.ActivityThread.main(ActivityThread.java:7853)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:984)

As far as I debug, it is being crash due to 'null' value of 'messageReceipt.getReceiptType()'.

Please fix that issue ASAP.
Thanks.

Call and video keep crashing

E/unknown:ViewManager: Error while updating prop source
java.lang.reflect.InvocationTargetException

java.lang.NoSuchMethodError: No virtual method diskCacheStrategy(Lcom/bumptech/glide/load/engine/DiskCacheStrategy;)Lcom/bumptech/glide/request/RequestOptions; in class Lcom/bumptech/glide/request/RequestOptions; or its super classes (declaration of ‘com.bumptech.glide.request.RequestOptions’ appears in /data/app/icode.com.doctory-nM3hIEL9oDSrgRRU5_V31g==/base.apk)
at com.dylanvann.fastimage.FastImageViewConverter.getOptions

Exception cannot convert String to JSON

When the metadata is set in call object it returns a string instead of JSONObject in response. which throws the exception cannot convert String to JSON Object as SDK end.

[2.0.0-beta4] Override hashCode() , equals() , clone() ,toStrings() in all pojo classes of CometChat Pro SDK

Describe the bug
hashCode() and equals() are not overriden in all POJO classes

Expected behavior
all objects are available for comparison using equals()

Actual behavior
methods not available in POJOs

Enviorment/Platfrom (please complete the following information):

• CometChat SDK Version[2.0.0-beta4]

[1.8.8] Audio call can be switched to Video Call

Describe the bug
Audio Call can be switch to Video call through Video call button on screen.

Expected behavior

Video call button must be disabled, so Audio call cannot be switched to Video Call

Actual behavior

Audio call can be switched to Video call.

Enviorment/Platfrom (please complete the following information):

• CometChat SDK Version[1.8.8]

[2.3.5] Fatal Exception: java.lang.NullPointerException Attempt to invoke virtual method 'int java.util.Timer.purge()' on a null object reference com.cometchat.pro.core.PingController.stopPing

App crashes, crash log:

com.cometchat.pro.core.PingController.stopPing (PingController.java:3)
com.cometchat.pro.core.CometChat.loginFail (CometChat.java:1)
com.cometchat.pro.core.CometChat.login (CometChat.java:139)
utils.CometChatHelper.internalLogin (CometChatHelper.java:56)
utils.CometChatHelper.access$internalLogin (CometChatHelper.java:16)
utils.CometChatHelper$internalLogin$1.onError (CometChatHelper.java:64)
com.cometchat.pro.core.CometChat$9.run (CometChat.java:1)

[1.8.3] Parameter validation in constructor of TextMessage, MediaMessage,CustomMessage and CallMessage

Describe the bug
Validation for the required parameter in constructors is not working

To Reproduce
Steps to reproduce the behavior:
Pass Different parameters than required in the constructor

Expected behavior
Compile-time error or Warning for passing the Wrong Parameter in the constructor

Actual behavior
Error response in onError() method

Enviorment/Platfrom (please complete the following information):

• Android API Version[Android 7.1.1 || API 21 ]
• CometChat SDK Version[1.8.3]

Logs (Error Logs)

• Error Log
  error Message: Failed to validate the data sent with the request.

Additional context

Constructor Created was

   TextMessage textMessage=new TextMessage(UID,null, 
    CometChatConstants.CALL_TYPE_VIDEO,CometChatConstants.CATEGORY_MESSAGE);

Please rev the version of okio depedency to version 1.17.4(minimum).

I have multiple sdk's which use the latest version of okio dependency. As cometchat-pro uses okio as a jar file there's no way I can exclude it. If you can please rev the okio version and release it, it would be very helpful

Duplicate class okio.AsyncTimeout found in modules okio-1.15.0.jar (com.cometchat:pro-android-chat-sdk:1.7.0) and okio-1.17.4.jar (com.squareup.okio:okio:1.17.4)

Message Category custom not handled by the SDK

SDK needs to add support for Message category custom

Could not resolve com.squareup.okhttp3:okhttp:3.12.+

Hi a have added the

implementation 'com.cometchat:pro-android-chat-sdk:2.0.3'
implementation 'com.squareup.okhttp3:okhttp:3.12.+'

to my project dependencies
Android Studio build ok while only while is online.
when is offline show this error, what I can do?

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.squareup.okhttp3:okhttp:3.12.+

what I can do?