If you come across an error as " xml is invalid " on any PeopleSoft Fluid Page then it is ocurring because of the fluid page on which grid is placed.
To resolve this follow below instructions -
1. Go to properties of all grids placed on fluid page.
2. Go to USE tab
3. Under Grid Style check Grid Layout
4. If it is 'Classic Grid Layout' then change it to 'Flex Grid Layout'
5. Save the Page.
To resolve this follow below instructions -
1. Go to properties of all grids placed on fluid page.
2. Go to USE tab
3. Under Grid Style check Grid Layout
4. If it is 'Classic Grid Layout' then change it to 'Flex Grid Layout'
5. Save the Page.