QAxBase::setControl: requested control Excel.Application could not be instantiated

[duncan98]

hi,
The application output shows:
QAxBase::setControl: requested control Excel.Application could not be instantiated
QAxBase::dynamicCallHelper: Object is not initialized, or initialization failed
How to solve this problem？

[JonB]

@duncan98 said in QAxBase::setControl: requested control Excel.Application could not be instantiated:

How to solve this problem？

Depends on what the code is.

[ChrisW67]

@duncan98 said in QAxBase::setControl: requested control Excel.Application could not be instantiated:

QAxBase::setControl: requested control Excel.Application could not be instantiated

Install the 32-bit or 64-bit Excel to match your application?

[JonB]

@duncan98
You already have this question going in https://forum.qt.io/topic/129216/why-export-excel-in-windows10-normal-in-windows7-export-will-crash/11. Please don't double-post, it causes people to respond twice/in different places which is a waste of peoples' time.

[duncan98]

@ChrisW67
Thanks,the problem has been found. However, it cannot be initialized without software installed, which is more limited

[mrjj]

@duncan98 said in QAxBase::setControl: requested control Excel.Application could not be instantiated:

However, it cannot be initialized without software installed, which is more limited

Of cause it cant. its using excel to do the actual functions just like any other
activeX servers depends on the client app.

[duncan98]

@mrjj
Can this Excel component be referenced independently? I want to package it into the installer

[JonB]

@duncan98
See the answer at https://forum.qt.io/topic/129216/why-export-excel-in-windows10-normal-in-windows7-export-will-crash/22 in your other on-going thread with the same question.