Adrian Thompson

I was having the same issue and realized that the "this" keyword had a conflict within the promise and I had to create a new variable to hold to root...

The **eosio::db_plugin** is obsolete and was replaced by the **eosio::mongo_db_plugin** while the **eosio::account_history_api_plugin** and **eosio::account_history_plugin** plugins were replaced by the **eosio::history_api_plugin** and **eosio::history_plugin**. The problem is now with the **"mongo_db_plugin"**...