You might see that the Dropbox Community team have been busy working on some major updates to the Community itself! So, here is some info on what’s changed, what’s staying the same and what you can expect from the Dropbox Community overall.

Forum Discussion

Kevin H.27's avatar
Kevin H.27
New member | Level 1
9 years ago

BadResponseException: Bad JSON

Dear Dropbox Community,

I am using the Dropbox API v2 for my Android app. Lately I have been seeing issues when trying to download a file with client.files().download() where the file does not (yet) exist. Instead of the expected DownloadErrorException, I am getting a BadResponseException (full stack below). I am using the SDK as in compile 'com.dropbox.core:dropbox-core-sdk:2.0.2'

Any ideas?

com.dropbox.core.BadResponseException: Bad JSON: No suitable constructor found for type [simple type, class com.dropbox.core.DbxRequestUtil$ErrorWrapper$ApiErrorResponse<com.dropbox.core.v2.files.DownloadError>]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?)
at [Source: buffer(com.android.okhttp.internal.http.HttpConnection$ChunkedSource@87dfad0).inputStream(); line: 1, column: 2]
at com.dropbox.core.v2.DbxRawClientV2$2.execute(DbxRawClientV2.java:157)
at com.dropbox.core.v2.DbxRawClientV2$2.execute(DbxRawClientV2.java:129)
at com.dropbox.core.v2.DbxRawClientV2.executeRetriable(DbxRawClientV2.java:238)
at com.dropbox.core.v2.DbxRawClientV2.downloadStyle(DbxRawClientV2.java:129)
at com.dropbox.core.v2.files.DbxUserFilesRequests.download(DbxUserFilesRequests.java:258)
at com.dropbox.core.v2.files.DbxUserFilesRequests.download(DbxUserFilesRequests.java:284)
at com.podcatcher.deluxe.model.sync.dropbox.DropboxPodcastListSyncController$DropboxSyncPodcastListTask.getServerSubscriptions(DropboxPodcastListSyncController.java:187)
at com.podcatcher.deluxe.model.sync.dropbox.DropboxPodcastListSyncController$DropboxSyncPodcastListTask.doInBackground(DropboxPodcastListSyncController.java:104)
at com.podcatcher.deluxe.model.sync.dropbox.DropboxPodcastListSyncController$DropboxSyncPodcastListTask.doInBackground(DropboxPodcastListSyncController.java:88)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: com.fasterxml.jackson.databind.JsonMappingException: No suitable constructor found for type [simple type, class com.dropbox.core.DbxRequestUtil$ErrorWrapper$ApiErrorResponse<com.dropbox.core.v2.files.DownloadError>]: can not instantiate from JSON object (missing default constructor or creator, or perhaps need to add/enable type information?)
at [Source: buffer(com.android.okhttp.internal.http.HttpConnection$ChunkedSource@87dfad0).inputStream(); line: 1, column: 2]
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1130)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:298)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:133)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2863)
at com.dropbox.core.DbxRequestUtil$ErrorWrapper.fromResponse(DbxRequestUtil.java:273)
at com.dropbox.core.v2.DbxRawClientV2$2.execute(DbxRawClientV2.java:152)
... 13 more

 

About Dropbox API Support & Feedback

Node avatar for Dropbox API Support & Feedback

Find help with the Dropbox API from other developers.

5,915 PostsLatest Activity: 23 hours ago
333 Following

If you need more help you can view your support options (expected response time for an email or ticket is 24 hours), or contact us on X or Facebook.

For more info on available support options for your Dropbox plan, see this article.

If you found the answer to your question in this Community thread, please 'like' the post to say thanks and to let us know it was useful!