Press and hold the Windows key and the letter R on your keyboard 2. You will see a Run box in the lower-left corner of your screen 3.

This application failed to start because it could not find or load the qt platform plugin windows zalo.

Type dxdiag in the text field 4. If your computer has a 64-bit version of Windows, click the button Run 64-bit DXDIAG (see screenshot below) 6. If your computer has a 32-bit version of Windows, that button will not be available 7. Click the Save All Information button, found on the bottom of the DXDIAG report 8. Save this text file to your Desktop if possible 9. Open the text file, select all the text inside (Ctrl + A) and copy it (Ctrl +C). Go to, paste the contents of your DXDiag inside (Ctrl+V) and click Save on the webpage (Ctrl+S).

Copy the link of the page in your post, along with a precise description of your issue. Press and hold the Windows key and the letter R on your keyboard 2. You will see a Run box in the lower-left corner of your screen 3.

Type dxdiag in the text field 4. If your computer has a 64-bit version of Windows, click the button Run 64-bit DXDIAG (see screenshot below) 6. If your computer has a 32-bit version of Windows, that button will not be available 7. Click the Save All Information button, found on the bottom of the DXDIAG report 8. Save this text file to your Desktop if possible 9.

Open the text file, select all the text inside (Ctrl + A) and copy it (Ctrl +C). Go to paste the contents of your DXDiag inside (Ctrl+V) and click Save on the webpage (Ctrl+S).11. Copy the link of the page in your post, along with a precise description of your issue. Cheers, Nils. I'm having the same problem but instead of 'cocoa' mine says 'windows'. I'm all updated and running win 7 HP. I tried everything, even did a sys file check. I downloaded the Qt for beginners app.

And I have to be like a graphics engineer or something. I may know my way around many PC related stuff but there's no way I can grasp the understanding of what I am supposed to do with this Qt app. I looke4d at sys restore too, but It didn't go back far enough.

Guidance needed help please, there's got to be a way around or through this. Press and hold the Windows key and the letter R on your keyboard 2. You will see a Run box in the lower-left corner of your screen 3. Type dxdiag in the text field 4. If your computer has a 64-bit version of Windows, click the button Run 64-bit DXDIAG (see screenshot below) 6. If your computer has a 32-bit version of Windows, that button will not be available 7.

Click the Save All Information button, found on the bottom of the DXDIAG report 8. Save this text file to your Desktop if possible 9. Open the text file, select all the text inside (Ctrl + A) and copy it (Ctrl +C). Go to, paste the contents of your DXDiag inside (Ctrl+V) and click Save on the webpage (Ctrl+S). Copy the link of the page in your post, along with a precise description of your issue. Press and hold the Windows key and the letter R on your keyboard 2. You will see a Run box in the lower-left corner of your screen 3.

Type dxdiag in the text field 4. If your computer has a 64-bit version of Windows, click the button Run 64-bit DXDIAG (see screenshot below) 6. If your computer has a 32-bit version of Windows, that button will not be available 7. Click the Save All Information button, found on the bottom of the DXDIAG report 8. Save this text file to your Desktop if possible 9.

Open the text file, select all the text inside (Ctrl + A) and copy it (Ctrl +C). Go to paste the contents of your DXDiag inside (Ctrl+V) and click Save on the webpage (Ctrl+S).11. Copy the link of the page in your post, along with a precise description of your issue. Cheers, Nils. I got these troubleshooting steps from online chat. My error message was Qt platform plugin 'windows' in'. (STEP 1) For Windows 7 control panel-->appearence and personalization--->folder options--->views--->show all the hidden folders (Step 1) Press Windows and E at the same time.

Then click on view-->options-->views in the small window Then select sho hidden folders and files and then, apply and ok, (Step 2) for 7, 8 10 Please access your 'C' drive. Program data-->origin-->delete everything except Local content. (Step 3) Please access your 'C' drive. Users-->Your user ID folder-->App data-->Local and delete the origin folder inside it (step 4) Please access your 'C' drive.

Users-->Your user ID folder-->App data-->roaming and delete the origin folder inside it now please restart the PC I'm not sure what is meant by local content - if anyone could help me with that. Army pa letter of intent.