You should move the app to Application folder 

Sent from my iPhone

> On 26 May 2018, at 14:22, Bernhard Pieber <bernhard at pieber.com> wrote:
> 
> Dear all,
> 
> I downloaded http://files.squeak.org/5.2alpha/Squeak5.2alpha-18019-64bit/Squeak5.2alpha-18019-64bit-201804030952-macOS.zip, extracted it and double-clicked it. The Squeak window opens but an error message appears:
> 
> "Squeak cannot write to the changes file named /private/var/folders/.../Squeak5.2alpha-18019-64bit.changes.
> Please check you have write permission for this file.
> You won't be able to save this image correctly until you fix this."
> 
> I am on on macOS Sierra Version 10.12.6 (16G1314).
> 
> I can reproduce it every time. When I move the extracted .app to another folder before double-clicking it, the error does not happen. However, I only found that out by chance. Real newbies might not be so lucky.
> 
> This should work, i.e. the copying to a different folder should not be necessary, right?
> 
> Thank you for giving me something to test. ;-)
> 
> Cheers,
> Bernhard
> 
> 
>