AEGP Plugin PNGIO Support... Unable to decode PNG file

[tardigrade01]

I have a node file that downloads a static map file as a .png (I have also tried downloading it as a .jpg) and adds it as a layer to a comp via CSInterface. The first time I do so, I consistently get this error:

AEGP Plugin PNGIO Support: PNGIO library error: Unable to decode PNG file (5027 :: 12)

However, the image does import and show up as a layer in the comp. (Also, oddly, it is not visible in the comp until I move the playhead.)

If I try importing again, I do not get the error.

Has anyone else encountered this kind of thing when importing images and/or found a solution?

[tardigrade01]

to add to this question, when I try to import a .jpeg or .gif format, why does Importfile always expect a png?

[David Torno]

I would reference your original post back in March on this (5027::12) error:

AEFP Plugin PNGIO Support Error -- Unable to decode PNG (5027 :: 12)

to add to this question, when I try to import a .jpeg or .gif format, why does Importfile always expect a png?

Shouldn't matter, as long as the format is something that AE support. Are you using the ImportOptions object for importFile?

Pg.75 of the Scripting Guide:

ImportOptions object

new ImportOptions(); new ImportOptions(file);

Description

The ImportOptions object encapsulates the options used to import a file with the Project.importFile methods. See “Project importFile() method” on page 118.

The constructor takes an optional parameter, an ExtendScript File object for the file. If it is not supplied, you must explicitly set the value of the file attribute before using the object with the importFile method. For example:

new ImportOptions().file = new File("myfile.psd");

Attributes	Reference	Description
importAs	“ImportOptions importAs attribute” on page 76	The type of file to be imported.
sequence	“ImportOptions sequence attribute” on page 77	When true, import a sequence of files, rather than an individ- ual file.
forceAlphabetical	“ImportOptions forceAlphabetical attri- bute” on page 76	When true, the “Force alphabetical order” option is set.
file	“ImportOptions file attribute” on page 76	The file to import, or the first file of the sequence to import.

Methods

ImportOptions canImportAs() method

importOptions.canImportAs(type) Description

Reports whether the file can be imported as the source of a particular object type. If this method returns true, you can set the given type as the value of the i m p o r t A s attribute. See “ImportOptions importAs attribute” on page 76.

Parameters

Method	Reference	Description
canImportAs()	“ImportOptions canImportAs() method” on page 75	Restricts input to a particular file type.

type	The type of file that can be imported. An ImportAsType enumerated value; one of: ImportAsType.COMP ImportAsType.FOOTAGE ImportAsType.COMP_CROPPED_LAYERS ImportAsType.PROJECT

Returns

Boolean.

Example

var io = new ImportOptions(File(“c:\\myFile.psd”));

if io.canImportAs(ImportAsType.COMP);

io.importAs = ImportAsType.COMP;

[tardigrade01]

yes, I am, but whenever I use anything other than a .png, I get the following error:

AEGP Plugin PNGIO Support: PNGIO library error: Input file doesn't seem to be a PNG file. (5027 :: 12)

Here is the code:

var importOpts = new ImportOptions(new File(mapLayer));
var importImg = app.project.importFile(importOpts)
app.project.item(1).layers.add(importImg);

[tardigrade01]

For what it's worth/in case anyone else runs into this issue, it turned out to be an "async" issue; I solved it by splitting the importing of the image and the adding of the image as a layer into separate functions, and on the js side via CSInterface, made the add image function a callback of the import image.

[tardigrade01]

Well, scratch that, the PNGIO error still happens, but less frequently. Does anyone know of a way to suppress error messages, or a scriptable way to simulate an "enter" keypress?

beginSuppressDialog() doesn't work for this kind of modal, and the traditional JS method of

document.createEvent("KeyboardEvent");

doesn't work in extendScript

[tardigrade01]

I know I'm kind of an echo chamber in here but I'm just trying to find a solution however I can. So, has anyone used initKeyboardEvent in ExtendScript, or is there a way to create an eventListener to detect an error window opening?

[alan5E69]

i have the same issue