signature check failed trying to upload new app version

In trying to upload a new app version I get this error:

The following errors were detected in your app file

Signature check failed.

My developer key and the app id have not changed as far as I know. The .iq file is over 32MB, and maybe it got corrupted in upload so I tried building a new export with a new app ID and supporting fewer devices, reslting in a 5MB .iq file. The upload of that also resulted in the same error.

Definitely the app id and developer key did not change. I tried starting from a new project, uploaded an export of that fine. Then copied in the resources, and source code and monkey.jungle file content into it from my desired project, tried to upload an export of this and got the error again.

Any ideas on this one?

I still need help on this.

trudelta 8 months ago

It seems like one of the PNG files in the drawables folder was somehow causing the error. I changed the PNG file slightly and re-exported the project. This time it uploaded successfully.

It seems like the PNG file was possibly causing a hash signature clash or something like that.