@Hawkeye64

I created a new project with quasar create <project>.
Then I added QPdfviewer with quasar ext add @quasar/qpdfviewer.
Still the same.

quasar v1.5.4 / quasar/app v1.3.3

@Hawkeye64

After removing yarn.lock, node_modules and yarn install I still got the same error messages.

quasar v1.5.3 / quasar/app v1.3.1

@Hawkeye64
Here are some additional infos:

There was an older version of QPdfviewer installed in my project.
After reading your hints on installing QPdfviewer in this case I performed uninstall and re-install of QPdfviewer.
This didn’t solve the problem.

@jarvilito

Here is an example from my code.
I changed this.tableData[this.selected[0].__index] to this.tableData[this.tableData.indexOf(this.selected[0])]

Maybe this will help you?

@jarvilito
See https://forum.quasar-framework.org/topic/4723/quasar-v1-4-4-released

feat+perf(QTable): Skip adding __index to each row (#5608) (might be considered a breaking change if you relied on this undocumented prop; use dataTable.indexOf(rowObject) instead)

quasar 1.5.1 / quasar/app1.3.1

@Hawkeye64
Windows 10 Version 1809

Same on Firefox 70.0.1 and Chromium 78.0.3904.108

Currently installed QPdfviewer v1.0.0-beta.5

Used example code from https://github.com/quasarframework/app-extension-qpdfviewer

<div class="container q-pa-sm">
  <q-pdfviewer
    v-model="showPdf"
    :src="currentPdf"
    type="html5"
    content-class="fit container"
    inner-content-class="fit container"
  />
</div>

...

<style scoped>
  .container {
    max-width: 100%;
    max-height: 100%;
    min-width: 400px;
    min-height: 600px;
    width: 94vw;
    height: 75vh;
  }
</style>

PDF is shown as it should be.

Got this console output:

[Vue warn]: Error in v-on handler: "TypeError: handler.apply is not a function"

found in

---> <QPdfviewer>

...

TypeError: "handler.apply is not a function"
    VueJS 3
        invokeWithErrorHandling
        invoker
        _wrapper
vue.runtime.esm.js:1888
    VueJS 6
        logError
        globalHandleError
        handleError
        invokeWithErrorHandling
        invoker
        _wrapper

...

offsetParent is not set -- cannot scroll viewer.js:2538:13
    scrollIntoView resource://pdf.js/web/viewer.js:2538
    _scrollIntoView resource://pdf.js/web/viewer.js:8801
    _scrollIntoView resource://pdf.js/web/viewer.js:8273
    _resetCurrentPageView resource://pdf.js/web/viewer.js:8915
    _setCurrentPageNumber resource://pdf.js/web/viewer.js:8478
    scrollPageIntoView resource://pdf.js/web/viewer.js:8937
    _setScaleUpdatePages resource://pdf.js/web/viewer.js:8836
    _setScale resource://pdf.js/web/viewer.js:8904
    set currentScaleValue resource://pdf.js/web/viewer.js:8551
    setInitialView resource://pdf.js/web/viewer.js:1348
    load resource://pdf.js/web/viewer.js:1114

Problem was solved with upgrade to quasar v1.5.0

I found the solution as shown here:
https://quasarframework.github.io/quasar-ui-qmediaplayer/docs

You have to use quasar ext add @quasar/qmediaplayer instead.