Using V2 in Termux (Android): "Selecting deleted buffer" error

Troubleshooting
1

I was able to use V1 in Emacs running in Termux (on Android) without issue. However, V2 has various errors, including a “Selecting deleted buffer” error that occurs with various operations, including org-roam-setup and org-roam-node-insert.

Here’s the debug error message when running org-roam-setup:

Debugger entered--Lisp error: (error "Selecting deleted buffer")
  #f(compiled-function (connection) "Return true if the end of the buffer has a properly-formatted prompt." #<bytecode 0x1f83958fdd>)(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8>)
  apply(#f(compiled-function (connection) "Return true if the end of the buffer has a properly-formatted prompt." #<bytecode 0x1f83958fdd>) #<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> nil)
  emacsql-waiting-p(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8>)
  #f(compiled-function (connection &optional timeout) "Block until CONNECTION is waiting for further input." #<bytecode 0x1f839568e1>)(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8>)
  apply(#f(compiled-function (connection &optional timeout) "Block until CONNECTION is waiting for further input." #<bytecode 0x1f839568e1>) #<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> nil)
  emacsql-wait(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8>)
  #f(compiled-function (#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> (:file "/data/data/com.termux/files/home/.emacs.d/org-roam..."))
  apply(#f(compiled-function 
  #f(compiled-function (&rest args) #<bytecode 0x1f83926501>)(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> (:file "/data/data/com.termux/files/home/.emacs.d/org-roam..."))
  apply(#f(compiled-function (&rest args) #<bytecode 0x1f83926501>) #<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> (:file "/data/data/com.termux/files/home/.emacs.d/org-roam..."))
  initialize-instance(#<emacsql-sqlite-connection emacsql-sqlite-connection-1f839264c8> (:file "/data/data/com.termux/files/home/.emacs.d/org-roam..."))
  #f(compiled-function (class &rest slots) "Default constructor for CLASS `eieio-default-superclass'.\nSLOTS are the initialization slots used by `initialize-instance'.\nThis static method is called when an object is constructed.\nIt allocates the vector used to represent an EIEIO object, and then\ncalls `initialize-instance' on that object." #<bytecode 0x1f84005641>)(emacsql-sqlite-connection :file "/data/data/com.termux/files/home/.emacs.d/org-roam...")
  apply(#f(compiled-function (class &rest slots) "Default constructor for CLASS `eieio-default-superclass'.\nSLOTS are the initialization slots used by `initialize-instance'.\nThis static method is called when an object is constructed.\nIt allocates the vector used to represent an EIEIO object, and then\ncalls `initialize-instance' on that object." #<bytecode 0x1f84005641>) emacsql-sqlite-connection (:file "/data/data/com.termux/files/home/.emacs.d/org-roam..."))
  make-instance(emacsql-sqlite-connection :file "/data/data/com.termux/files/home/.emacs.d/org-roam...")
  emacsql-sqlite("/data/data/com.termux/files/home/.emacs.d/org-roam...")
  org-roam-db()
  org-roam-db-sync()
  org-roam-setup()
  (progn (org-roam-setup) (require 'org-roam-protocol) t)
  (condition-case err (progn (org-roam-setup) (require 'org-roam-protocol) t) ((debug error) (funcall use-package--warning46 :config err)))
  (lambda nil (condition-case err (progn (org-roam-setup) (require 'org-roam-protocol) t) ((debug error) (funcall use-package--warning46 :config err))))()
  eval-after-load-helper("/data/data/com.termux/files/home/.emacs.d/elpa/org...")
  run-hook-with-args(eval-after-load-helper "/data/data/com.termux/files/home/.emacs.d/elpa/org...")
  do-after-load-evaluation("/data/data/com.termux/files/home/.emacs.d/elpa/org...")
  (org-roam-setup)
  eval-buffer(#<buffer  *load*> nil "/data/data/com.termux/files/home/.emacs.d/init.el" nil t)  ; Reading at buffer position 49758
  load-with-code-conversion("/data/data/com.termux/files/home/.emacs.d/init.el" "/data/data/com.termux/files/home/.emacs.d/init.el" t t)
  load("/data/data/com.termux/files/home/.emacs.d/init" noerror nomessage)
  startup--load-user-init-file(#f(compiled-function () #<bytecode 0x1f841fb7f1>) #f(compiled-function () #<bytecode 0x1f8402afed>) t)
  command-line()
  normal-top-level()

I tried setting inhibit-modification-hooks to t (as per Migration: the process fails with "selecting deleted buffer" · Issue #1603 · org-roam/org-roam · GitHub ; and I’m not running git-gutter) and running the commands again, including trying the migration wizard again, but that too stops with a “Selecting deleted buffer” error.

2

Not the same error but this user is successfully doing the same thing as you are trying (?)

3

Thanks! It’s weird that it’s different error messages, but I’ll see if I have any luck this way.

4

I’ve got it working at least better using chunglak’s “hack”: On Android Termux, any access to the database fails with "middleware out of memory" error · Issue #1605 · org-roam/org-roam · GitHub