build fix

Author: AbhiPrasad

packages/core/src/baseclient.ts

@@ -527,7 +527,7 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
     if (this._isEnabled() && this._transport) {
       return this._transport.send(envelope).then(null, reason => {
         DEBUG_BUILD && logger.error('Error while sending event:', reason);
-        return {};
+        return reason;
       });
     }
 

packages/vercel-edge/src/transports/index.ts

@@ -37,13 +37,13 @@ export class IsolatedPromiseBuffer {
   /**
    * @inheritdoc
    */
-  public add(taskProducer: () => PromiseLike<TransportMakeRequestResponse>): PromiseLike<void> {
+  public add(taskProducer: () => PromiseLike<TransportMakeRequestResponse>): PromiseLike<TransportMakeRequestResponse> {
     if (this._taskProducers.length >= this._bufferSize) {
       return Promise.reject(new SentryError('Not adding Promise because buffer limit was reached.'));
     }
 
     this._taskProducers.push(taskProducer);
-    return Promise.resolve();
+    return Promise.resolve({});
   }
 
   /**