Request Approval : Edit Task Form issue

This worked for some people:

1. Create an export for the workflow in dev.
2. Go to [exportsite]/NintexWorkflows/[workflowname] and download the Infopath-form you modified
3. Import the workflow in your new environment
4. Go to [importsite]/NintexWorkflows/[workflowname] and delete the Infopath-form available there.
5. Upload the form you exported in step 2.

Now the new form should show up when you use the flexitask.

Got the solution..

I think it might help someone to fix it as well. please see steps i have followed to fix this issue.

1. Get the backup of InfoPath form from the developed site

• Open the Nintex workflow (where the info path form has been added).
• For example, here I am taking "Request Approval action" inside the Nintex workflow where I have customized the form using info path form.
• Save the customized form (added inside the Request approval action) to your local pc.
  

2. Import the InfoPath form (of Nintex workflow) to Live or other Site

• You can deploy info path form (of Nintex workflow), only after importing & saving (or publishing) the Nintex workflow to the destination location.
• Open the Nintex workflows collection location on the site, where you want to deploy your info path form. Eg : http://(Site Address)/NintexWorkflows/Forms/AllItems.aspx 
• Open the Nintex Workflow folder. (you can see here each workflow holds separate folder with the same name as workflow name)

You can enter the following values(for the above fields shown in image) based on your workflow and List
      Name --> Give  a relevant name to identify the form
      NWAssociatedWebID --> This ID is global & common to SharePoint 2010 & 2013. Enter the value “1d5afadd-d013-4d88-b3b2-38b570da9b6f “
      NintexWorkflowID --> Open the “Site Actions (from the top menu ribbon)--> Site Settings --> Workflows gallery (under Nintex workflow section) --> Right click on workflow (where you have added the current form) --> Properties --> select all the text under General tab (as shown in below ) --> copy and paste on note pad --> extract workflow id (value after “WorkflowId” and before “&Category”. See example below marked in pink)”
      Eg: Preview.aspx?WorkflowId=2c684d6c-4a1b-4d8b-88db-1bc8ef02dd52&Category=List&ListId=1daf8978-b6a5-463d-9fb6-19a8b63bde8f

     AssociatedListID --> from the steps of NintexWorkflowID, you can get the list id as marked (in pink colour) in below example     

Eg: Preview.aspx?WorkflowId=2c684d6c-4a1b-4d8b-88db-1bc8ef02dd52&Category=List&ListId=1daf8978-b6a5-463d-9fb6-19a8b63bde8f

• Now after entering all the values select " Check in --> Save "
• Now under same url, select “Library (from the top menu ribbon) --> Open with Explorer”.
• Here you can see the file name starting with “Request Approval_******** - Working” (which is default .xsn file). Now copy this name and keep on notepad rename this file with “default form”.
• Now rename the uploaded .xsn file name to the copied name (“Request Approval_******** - Working” .xsn file name)
• Now open the Workflow (where you want to customizer the form).
• Select action “Request Approval --> Edit task Form --> Edit Task form With Info Path Form 2010”.
• Now you will be able to see your customized form. If not you can go select "File --> Open --> Give the location (windows explorer path) of SharePoint where you have saved your InfoPath form --> open publish the form --> save & publish workflow".

Done. This is how you can deploy the customized form for Nintex workflow actions.

I've followed the instructions above and was able to access the updated form in my workflow, however when I try to publish it I get an error.  Looking at the form in InfoPath, I can see that the Publish location is still set to the original server where I copied the form from (current form vs. imported form):