報這個錯誤的原因有很多，要看后面的具體錯誤是什么錯誤才能解決

Error?starting?ApplicationContext.?To?display?the?conditions?report?re-run?your?application?with?'debug'?enabled.
2019-07-14?15:17:31.078?ERROR?3628?---?[???????????main]?o.s.b.d.LoggingFailureAnalysisReporter???:?
***************************
APPLICATION?FAILED?TO?START
***************************
Description:Failed?to?bind?properties?under?'spring.datasource.type'?to?java.lang.Class<javax.sql.DataSource>:????
????Property:?spring.datasource.type????
????Value:?com.alibaba.druid.pool.DruidDataSource????
????Origin:?class?path?resource?[application.yml]:11:11????
Reason:?No?converter?found?capable?of?converting?from?type?[java.lang.String]?to?type?[java.lang.Class<javax.sql.DataSource>]

Action:
Update?your?application's?configuration

錯誤提示不在第一行，而是后面的錯誤描述

同樣求解啊

啟動ApplicationContext時出錯。要顯示條件報告，請在啟用“debug”的情況下重新運行應用程序。