Caught exception invoking method when calling BuildAssetBundles method in Post-Export Method

I get the following error when calling BuildPipeline.BuildAssetBundles in a method specified by Post-Export Method.

[Unity] ERROR: Caught exception invoking method 'PostExportMethod': parameters do not match signature

I have confirmed that the method does indeed run via debug log statements. It is only until Unity Cloud reaches the BuildAssetBundles statement does the above error occur.

Code (CSharp):

1.   var abb = new AssetBundleBuild[1];
2.   abb[0] = new AssetBundleBuild();
3.   abb[0].assetBundleName = abName;
4.   abb[0].assetNames = new string[] { "encrypted_data" };
5. #if ANDROID
6.   BuildPipeline.BuildAssetBundles( Path.Combine( Application.dataPath, abName ), abb, BuildAssetBundleOptions.None, BuildTarget.Android );
7. #else
8.   BuildPipeline.BuildAssetBundles( Path.Combine( Application.dataPath, abName ), abb, BuildAssetBundleOptions.None, BuildTarget.iOS );
9. #endif

Is there something wrong with my code? abName is not an empty string.

 

BuildPipeline.BuildAssetBundles first parameter was bad. Instead of just being a path (Application.dataPath) it also has the name of the assetbundle (abName). The error UnityCloud displayed should have said something along the lines of BuildAssetBundles failing instead of PostExportMethod failing