Task list: Can not open new form

[Exp.AB]

Hi guys.

I have a simple task list. The default forms were working fine.

Then I created SP forms like I have done for other lists. But now the New form won't open. If I click on the "+ new task" or if I click on the ribbon "new item" I get the following error:

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(url: ..../fd_Task_NewForm.aspx... and if I change the url to: ..../NewForm.aspx I also get the below error)

Sorry, something went wrong


An unexpected error has occurred.

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If I open a task it opens in the default ".../DispForm.aspx..." and if I click the edit button on a task it opens in the default ".../EditForm.aspx...".

But if I change the url to ".../fd_Task_EditForm.aspx..." or ".../fd_Task_DisplayForm.aspx..." I can access my new forms.

Can you help me to understand what is going on?

[Dmitry Kozlov]

Please, send a template of the list (List settings -> Save this list as tempalte) and all forms (export them in Froms designer) to support@spform.com.

[MSRule88]

I am having the same issue, was there a solution to this?

[Dmitry Kozlov]

Most likely you have a syntax error in your code. Try to remove all custom JS- and CSS-code and save the form. If it does not help, remove fields one-by-one until the form starts working to figure out which one causes the issue. Also, note that the Related Tasks field cannot be used in a new form so if you have it, remove it first.