Java.io.tmpdir is set to a directory that doesn't exist

Question

Java

Help please..
uploaded this project:
https://github.com/tatung/FSKModemTerminal

Got an error:
Support for builds using Gradle versions older than 2.6 was removed in tooling API version 5.0. You are currently using Gradle version 2.2.1. You should upgrade your Gradle build to use Gradle 2.6 or later.

Possible solution:
- Upgrade Gradle wrapper to 2.6 version and re-import the project

Okay, clicked upgrade.

now I see an error message
Cause: java.io.tmpdir is set to a directory that doesn't exist: C:\Users\selevo\.gradle\daemon\2.6\temp
The folder itself is there, if deleted, it will reappear .

I don't understand what to do.