Compile Files is disabled

[AliAkbarMontazeri]

For some reason the Compile FIles button is disabled. Did I missed something?

[basmarijnissen]

Had the same problem. This worked for me:

1. Use Unity 2018.4.22f1
2. Delete everything in the default scene
3. Adding "ImageTarget" with corresponding steps
4. Check if Compile files is enabled
5. Add objects
6. Compile

Half of this might not have any effect, but this worked for me. I hope it does for you!