Hi, Morris:

Thanks for the instruction.

I have recovered from the problem using:

1. delete file : ~/.emacs.d/elpa/archives/melpa/archive-contents

2. add in ~/.emacs the following

(package-initialize)

(package-refresh-contents)

Now I tried to reproduce the problem by reverse back my emacs,

but cannot. I am ok if you close the bug.

I will let you know if I reproduce it later.

best regards,

wxie

On Wed, Jun 8, 2016 at 5:33 AM, Glenn Morris <rgm@gnu.org> wrote:

> 1. start emacs
> 2. M-x list-package
> 3. scroll to org (installed 20160606), mark D, then X
> 4. org is deleted in the installed list
> 5. C-x C-c to exit emacs
> 6. start emacs
> 7. M-x list-package
> 8. error: package-read-archive-contents: Wrong type argument: arrayp, nil

Thanks for the report. I can't reproduce this. Please repeat, but before
step 7:

6b. M-x load-library package.el RET
6c. M-x toggle-debug-on error RET

and then after step 7 send the resulting backtrace.