sbt not taking the correct the global plugin version

Question

While building a sbt project using sbt assembly I am getting this error :

sbt.ResolveException: unresolved dependency: com.geirsson#sbt-scalafmt;1.5.1: not found
        at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:313)
        at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:191)
        at sbt.IvyActions$$anonfun$updateEither$1.apply(IvyActions.scala:168)
        at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:156)
        ...
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
[error] (*:update) sbt.ResolveException: unresolved dependency: com.geirsson#sbt-scalafmt;1.5.1: not found

upon comparing the it with others I saw the difference was that my sbt was taking in wrong global plugin here :

❯ sbt assembly
[info] Loading global plugins from /Users/<username>/.sbt/0.13/plugins
[info] Updating {file:/Users/<username>/.sbt/0.13/plugins/}global-plugins...

it should have taken .sbt/1.0/plugins instead.

The build.properties is also has sbt.version=1.1.4

Doing sbt --version gives this result :

❯ sbt --version
[info] 1.1.4
sbt script version: 1.5.4

Things I tried :

• removing .sbt/0.13/plugins
• removing ~/.ivy2/cache
• deleting and re cloning the project