Problem with 4.7 prebuilt samples

Android/Java
, ,
1

Hi, i’m trying to use the camera calibration sample in the 4.7 prebuilt android sdk.

When i open the project with android studio i got this message :

The specified Gradle distribution ‘file:/opt/gradle/gradle-5.6.4-bin.zip’ does not exist.

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image2449×1585 108 KB

Same result on 2 computers ( one with new android studio just installed )

I don’t know what to do to get the sample working.

If anyone has a solution please share.

As an alternative if i have a working android project that i clone, can i copy these files in it ? :

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image693×1101 39.4 KB

My end goal is to use solvepnp to have the position and orientation of aruco markers in my working android project but i need to do a calibration.

2

Pleas post error message as text( robot could indexed it)

4

my version is opencv_4.8

Step 1:

OpenCV-android-sdk/samples/gradle/wrapper/gradle-wrapper.properties
content , edit

# distributionUrl=file\:/opt/gradle/gradle-5.6.4-bin.zip
distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip

Step 2:
Preference → build execution deployment → Build Tools → Gradle
Gradle JDK fix to 1.8

Setp 3:
Project Structure → Android Gradle plugin version : 4.2.4
Project Structure → Gradle version : 6.7.1

tips: the two version you need keep try , if you err like

cvc-complex-type.2.4.a: Invalid content was found starting with element 'base-extension'. One of '{layoutlib}' is expected

Setp 4:
rebuild