Unable to Delete Static Resource After Package Upgrade(Removes the Resource) because of Dangling Reference from a Visualforce Page
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Unable to Delete Static Resource After Package Upgrade(Removes the Resource) because of Dangling Reference from a Visualforce Page

Apex , AppExchange , Packaging , Platform , VisualForce

Last updated 2021-02-16 ·Reference W-5968236 ·Reported By 18 users

Fixed - Spring '21

After upgrading a package on a subscriber org where the new version no longer contains a static resource, the delete link on the static resource errors due to an external reference from a Visualforce page.

You'll need to create two orgs for this reproducer, one packaging org (developer edition) and one subscriber org.

1) Create a fresh developer edition org (packaging).

2) Create another fresh org (subscriber).

3) In the developer org add the static resource attached to this bug record with the name “logos_images”.

4) Create a Visualforce component named “DisplayLogoComponent” with the following code.

<apex:component >
<apex:image value="{!URLFOR($Resource.logo_images, 'logos/salesforce_logo.jpg')}" width="175" height="150"/>

5) Create a Visualforce page named “DummyVfPage”.

<apex:page >
<c:DisplayLogoComponent />

6) Setup → Search “Packages” in the quick find → Click New → Package Name == “foo” and check “Managed” → Save.

7) Navigate back to the package list and click on the package created in the previous step.

8) Add the previously created Visualforce page and component.

9) Click upload name it Summer 2018 w/ version number 1.0, change the release type to “Managed - Released: ...”, and click upload

10) After it's done uploading, save the install link. Should look something like this /packaging/installPackage.apexp?p0=<04t id>. You'll use this link later to install it on the subscriber org.

11) Still in the dev (packaging org), go ahead and comment out the <apex:image> tag in the component.

<apex:component >
<!-- <apex:image value="{!URLFOR($Resource.logo_images, 'logos/salesforce_logo.jpg')}" width="175" height="150"/> -->
12) Setup → Search “Packages” → Click on the package previously created.

13) Upload → Name it Winter 2019 with version number 1.1, check “Managed - Released: ... “ → Click upload.

14) Save the install link.

15) Login to the other subscriber org.

16) Install the Summer 2018 version 1.0 package by appending the /packaging/installPackage... link to the send of the url.

e.g. http://..../packaging/installPackage...

17) After it's done, Setup → Search “Static resources” → and view that it's there with no delete option.

18) Install the Winter 2019 version 1.1 package by appending the /packaging/installPackage... like before but for this version.

19) After it's done, Setup → Search “Static resources” → observe the delete link → press it and observe the following error

“This static resource is referenced elsewhere in salesforce.com. Remove the usage and try again.”

Actual Result:
Unable to delete the static resource.

Expected Result:
There is no reference to the static resource in the Visualforce page. Delete the static resource successfully after package upgrade.

A potential workaround would be to force recompilation of a page (ex: add a comment and save ) if there are any changes in its dependencies (components, other pages, etc) on package installation/upgrade. This should be done in packaging org.

If the issue still persists, please contact support to run script to remove dangling references.

Is it Fixed?

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