Solution to the error cannot resolve symbol reported by build.sbt

Solution to the error cannot resolve symbol reported by build.sbt

1. Background 2. Error reporting 3. Solution

1. Background

Idea version 2017.2, development language Scala, when re importing the SBT project, build.sbt became popular and cannot resolve symbol

2. Error reporting

As shown below

3. Solutions

3.1 delete the. Idea folder

3.2 using file – & gt; Invalidcaches/restart restart


3.3 after restarting, wait for the idea to regenerate the. Idea folder and solve the error!