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  1. #1
    Registered User
    Join Date
    Aug 2009
    Posts
    7

    Unhappy Installation Error when trying to record and play audio

    Hi,

    When I'm trying to install my mobile application using following lines I get an error message saying "Certificate Error".

    try {
    Player p = Manager.createPlayer("capture://audio");
    p.realize();

    RecordControl rc = (RecordControl)p.getControl("RecordControl");
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    rc.setRecordStream(output);
    rc.startRecord();

    p.stop();
    rc.stopRecord();
    rc.commit();
    p.close();

    ByteArrayInputStream input= new ByteArrayInputStream(output.toByteArray());
    Player p2 = Manager.createPlayer(input, "audio/x-wav");
    p2.prefetch();
    p2.start();

    }catch(Exception ex){}

    Is there anything wrong here?

    Thanks,
    Nitin.

  2. #2
    Nokia Developer Champion
    Join Date
    Feb 2009
    Location
    Noida, India
    Posts
    3,085

    Re: Installation Error when trying to record and play audio

    check your JAD file, do you ask for any permissions in the JAD for which the certificate is not present.
    On which device are you trying it...?

    thanks,
    ~Amitabh
    Last edited by im2amit; 2009-09-01 at 00:30.

  3. #3
    Registered User
    Join Date
    Aug 2009
    Posts
    7

    Re: Installation Error when trying to record and play audio

    No I dont think so. Btw i am trying it on Nokia N95.

  4. #4
    Super Contributor
    Join Date
    Jun 2003
    Location
    Cheshire, UK
    Posts
    7,395

    Re: Installation Error when trying to record and play audio

    How are you installing? (OTA, Bluetooth, ...?)

    Are you installing just a JAR, or JAD and JAR?

    Is the application signed?

    Graham.

  5. #5
    Registered User
    Join Date
    Aug 2009
    Posts
    7

    Re: Installation Error when trying to record and play audio

    I'm installing it by transferring both JAD and JAR files in a folder through data cable, and then opening the JAD file (tried opening JAR file also but same error popped up). The application is not signed.

  6. #6
    Super Contributor
    Join Date
    Jun 2003
    Location
    Cheshire, UK
    Posts
    7,395

    Re: Installation Error when trying to record and play audio

    OK. Make sure there are no other JADs or JARs in your message inbox. Ideally, make sure the inbox is empty.

    If it still won't install, please post the JAD and MANIFEST.MF files here.

    Graham.

  7. #7
    Nokia Developer Champion
    Join Date
    Feb 2009
    Location
    Noida, India
    Posts
    3,085

    Re: Installation Error when trying to record and play audio

    What is the name of your Midlet suite... is a signed version of same already installed on the device ?
    Check the MIDP & CLDC versions of the target device & in the JAD file.

    Cut & Paste your JAD file here.

    thanks,
    ~Amitabh

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