undefined method `marshal_dump'

[NehaPeer]

We use below ruby and rails version -

Ruby 2.7.3 Rails 6.1.3.2

While creating a new user it throws the below error -

#<NoMethodError: undefined method `marshal_dump' for #ActiveModel::Errors:0x00007fecf40576f0
Did you mean? marshal_load>

but id didnt use marshal_dump method anywhere in project

Below Create method defined in the controller -

def create

@user = User.new(user_params)

respond_to do |format|
if @user.save
format.html { redirect_to @user, notice: 'User successfully created.' }
format.json { render :show, status: :created, location: @user }
else
format.html { render :new }
format.json { render json: @user.errors, status: :unprocessable_entity }
end
end
end

private

def user_params
  params.require(:user).permit(:name, :email_id, :status)
end

[caseyprovost]

This is a pre-existing bug from Amazing Print (we see it at my day job). It's because under the covers the library is calling marshal_dump on something that (likely stopped somewhat recently) responding to that method.

[caseyprovost]

You can see more history: awesome-print/awesome_print#413

[HarlemSquirrel]

I found this PR which claims to fix the issue but the specs are not reproducing the issue for me.

Can someone reproduce this in a spec or code snippet?

[HarlemSquirrel]

I think this has been fixed in Amazing Print since #68 with version 1.3.0

[HarlemSquirrel]

Stale now so closing this. Please let me know if this is still happening with latest version.