Error on frontend when File missing from Grid with Fluid field

[ic360-com]

I'm getting the below error, when outputting a Fluid field, that contains a Grid containing a File in one of the Grid Fields, when no File has been selected/uploaded.

TypeError Caught
array_key_exists(): Argument #2 ($array) must be of type array, bool given
ee/ExpressionEngine/Addons/file/ft.file.php:787

Stack Trace: Please include when reporting this error
#0 ee/legacy/libraries/api/Api_channel_fields.php(391): File_ft->replace_tag_catchall()
#1 ee/legacy/libraries/Grid_parser.php(671): Api_channel_fields->apply()
#2 ee/legacy/libraries/Grid_parser.php(747): Grid_parser->call()
#3 ee/legacy/libraries/Grid_parser.php(486): Grid_parser->_replace_tag()
#4 ee/legacy/libraries/Grid_parser.php(370): Grid_parser->_parse_row()
#5 ee/ExpressionEngine/Addons/grid/ft.grid.php(231): Grid_parser->parse()
#6 ee/legacy/libraries/api/Api_channel_fields.php(391): Grid_ft->replace_tag()
#7 ee/ExpressionEngine/Model/Content/FieldFacade.php(423): Api_channel_fields->apply()
#8 ee/ExpressionEngine/Addons/fluid_field/Service/Tag.php(167): ExpressionEngine\Model\Content\FieldFacade->replaceTag()
#9 ee/ExpressionEngine/Addons/fluid_field/Service/Tag.php(140): ExpressionEngine\Addons\FluidField\Service\Tag->parsePairs()
#10 ee/legacy/libraries/Fluid_field_parser.php(434): ExpressionEngine\Addons\FluidField\Service\Tag->parse()
#11 ee/ExpressionEngine/Addons/fluid_field/ft.fluid_field.php(1064): Fluid_field_parser->parse()
#12 ee/legacy/libraries/api/Api_channel_fields.php(391): Fluid_field_ft->replace_tag()
#13 ee/legacy/libraries/channel_entries_parser/components/Custom_field_pair.php(183): Api_channel_fields->apply()
#14 ee/legacy/libraries/channel_entries_parser/Parser.php(291): EE_Channel_custom_field_pair_parser->replace()
#15 ee/legacy/libraries/Channel_entries_parser.php(172): EE_Channel_data_parser->parse()
#16 ee/ExpressionEngine/Addons/channel/mod.channel.php(2528): EE_Channel_parser->parse()
#17 ee/ExpressionEngine/Addons/channel/mod.channel.php(261): Channel->parse_channel_entries()
#18 ee/legacy/libraries/Template.php(1830): Channel->entries()
#19 ee/legacy/libraries/Template.php(1505): EE_Template->process_tags()
#20 ee/legacy/libraries/Template.php(624): EE_Template->tags()
#21 ee/legacy/libraries/Template.php(247): EE_Template->parse()
#22 ee/legacy/libraries/Template.php(177): EE_Template->fetch_and_parse()
#23 ee/legacy/libraries/Core.php(811): EE_Template->run_template_engine()
#24 ee/legacy/controllers/ee.php(53): EE_Core->generate_page()
#25 [internal function]: EE->index()
#26 ee/ExpressionEngine/Core/Core.php(268): call_user_func_array()
#27 ee/ExpressionEngine/Core/Core.php(124): ExpressionEngine\Core\Core->runController()
#28 ee/ExpressionEngine/Boot/boot.php(184): ExpressionEngine\Core\Core->run()
#29 index.php(164): require_once('...')
#29 index.php(164): require_once('...')

EE 7.3.14
PHP 8.1

[intoeetive]

@ic360-com how does the template code look like? Are you using any modifiers on the file column? Chaining multiple modifiers?

Also, I think you could solve this for now by checking if column is not empty prior to displaying it

[ic360-com]

Yes... I'm using that workaround. 👍

The template code is like this (without the workaround):

{main:layout3}
	{content}
		<div class="row mt-5">
			<div class="col-md-7 pe-md-5">
				{content:text}
			</div>
			<div class="col-md-5">
				<img src="{content:image:file:resize:webp resize:width="480"}" alt="{content:alt}">
				{if content:alt}<p class="image-caption">{content:alt}</p>{/if}
			</div>
		</div>
	{/content}
{/main:layout3}```

[intoeetive]

@ic360-com I don't think your setup is completely clear to me

So the Fluid is main, which has Grid of layout3, which has text, image and alt columns, is that correct? If yes, what is the :file modifier that you're using before :resize? I feel like it should be just {content:file:resize:webp resize:width="480"} or {content:image:resize:webp resize:width="480"}?

[ic360-com]

Yes you're correct.
So I've tried removing the 'file' modifier and it works fine.
Sorry my error.

[intoeetive]

If you ask me how I knew that... ;) #3766

But again, the error should not be shown even when applying invalid modifier. Thanks for reporting!