Indexing problem - `Undefined type` errors after using something from composer (without reloading vscode)

[kanlukasz]

To Reproduce

1. Init empty project
2. Create file e.g. test.php
3. Run composer require phpmailer/phpmailer
4. Paste PHPMailer simple example into test.php

<?php
// Import PHPMailer classes into the global namespace
// These must be at the top of your script, not inside a function
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

// Load Composer's autoloader
require 'vendor/autoload.php';

// Instantiation and passing `true` enables exceptions
$mail = new PHPMailer(true);

try {
    //Server settings
    $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      // Enable verbose debug output
    $mail->isSMTP();                                            // Send using SMTP
    $mail->Host       = 'smtp1.example.com';                    // Set the SMTP server to send through
    $mail->SMTPAuth   = true;                                   // Enable SMTP authentication
    $mail->Username   = '[email protected]';                     // SMTP username
    $mail->Password   = 'secret';                               // SMTP password
    $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;         // Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
    $mail->Port       = 587;                                    // TCP port to connect to, use 465 for `PHPMailer::ENCRYPTION_SMTPS` above

    //Recipients
    $mail->setFrom('[email protected]', 'Mailer');
    $mail->addAddress('[email protected]', 'Joe User');     // Add a recipient
    $mail->addAddress('[email protected]');               // Name is optional
    $mail->addReplyTo('[email protected]', 'Information');
    $mail->addCC('[email protected]');
    $mail->addBCC('[email protected]');

    // Attachments
    $mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
    $mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name

    // Content
    $mail->isHTML(true);                                  // Set email format to HTML
    $mail->Subject = 'Here is the subject';
    $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}

Expected behavior This error should disappear because the namespaces are correct I need to reload VSCode so that these errors disappear

Screenshot without reloading

Screenshot after reloading

Platform and version

Version: 1.45.1 (system setup)
Commit: 5763d909d5f12fe19f215cbfdd29a91c0fa9208a
Date: 2020-05-14T08:27:35.169Z
Electron: 7.2.4
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.18363

[bmewburn]

Do you need to reload or just close/ reopen file or edit it for them to disappear?

[kanlukasz]

I need reload Close / reopen file or edit doesn't help

[rilex037]

Undefined type 'PHPUnit\Framework\TestCase'.intelephense(1009) even after reload

edit: 1.4.1 seems to be indexing it fine

[kanlukasz]

I tested with 1.4.1. The problem still exists. Nothing has changed

[mreduar]

I have similar problems with it, sometimes it works sometimes it doesn't. I have no idea what that might be. I have tried restarting vs code, closing the file, making changes, even changing the php version.

[matt-gribben]

I've just run across this exact same problem for the first time. Previous composer updates have been fine but this time I suddenly got Undefined Type errors for a vendor package that previously worked fine.

[bmarotta]

Same here. Not sure if it matters, in my case "vendor" folder is below the workspace.

[fbnlsr]

Dunno if the problem is related but I'm facing the same issue even with something as simple as a FileException catch.

[juanferrer]

Still present in 1.7.1.

[Chandan-Kalita]

My error gone after restart

[rabol]

I just realised that I have the same issue in v 1.63 of vs code, v1.80 of the extension

I recently switch from phpstorm to vs code and did not really managed to figure out if this behaviour was vs code of this plugin, buy two day ago I reinstalled my mac and now I only have this extension in VSCode.

I'm using Laravel and the ide-helper, not sure if that an issue or an benefit

The issue disappears after restart of vscode, but it is not convenient to restart several times

[Stardog]

Same problem. VS Code: 1.63.0 PHP Intelephense v1.8.0

Restarting doesn't solve unfortunately.

[nxcco]

I've encountered the same problem. What worked for in VS Code me was this:

So open the command palette and make intelephense re-index the workspace.

[Stilmant]

Thanks @nxcco this helped. and make sense in my case since I updated the composer content while vsCOde was opened... Maybe a trigger missing to tell intelephese about external update of the source base?

[bmewburn]

There should be a filewatcher that detects the addition and removal of files. Does anyone have vendor files excluded in the files.watcherExclude setting?

[osik1]

Closing VS Code and Re-Opening it will solve this issue.

[kanlukasz]

There should be a filewatcher that detects the addition and removal of files. Does anyone have vendor files excluded in the files.watcherExclude setting?

I have the default setting and have never changed it:

[kanlukasz]

Closing VS Code and Re-Opening it will solve this issue.

It doesn't fix anything, it's a workaround (which is inconvenient anyway)

[Jemt]

I found that adding "vendor" to files.exclude in .vscode/settings.json would prevent type acquisition from Composer packages. Also, make sure to restart VSCode every time you do something to test whether it fixes the problem - you can't trust VSCode to reload types on the fly it seems.

[kaustubhya]

For me I installed some PHP Extensions like PHP and PHP Intellisense, Extension Pack, etc, and restarted VS code, the error was gone

[bmewburn]

tracking composer issue in #2213