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Microsoft tokens does not work under 1.16.1 MC version

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Hi everyone,

I'm working on how to get Microsoft tokens on all the versions, and I found that under 1.16.1 versions of MC, Forge does not take the Microsoft tokens.
I've found the MSMC library (that's really cool!), but the library does not resolve my issue 😬.

I'm using MCLC library for launch/download the game.

Really thanks for your help and have a good day,
Corentin de Maupeou


Here's the error message


[10:52:24] [main/ERROR] [LaunchWrapper]: Unable to launch java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at /Users/.../.minecraft for Forge


Here's my codes for the funcs :

ipcMain.handle('microsoft_login', () => {
    return new Promise((resolve, reject) => {
        msmc.fastLaunch('raw', console.log).then(result => {
            if (msmc.errorCheck(result)) return reject(result.reason)

            if (result.type !== 'Success')
                return dialog.showErrorBox('Oups ! Une erreur est survenue, veuillez réessayer (004)', Errors.microsoft_account)

ipcMain.handle('microsoft_refresh', (e, data) => {
    return new Promise((resolve, reject) => {
        const account = data.account

        msmc.refresh(account.profile, console.log)
            .then(e => resolve(JSON.stringify(e)))


Here's my code for giving to MCLC the tokens : 

// Adding auth
        if (localStorage.getItem('microsoft_account'))
            options = {
                authorization: msmc.getMCLC().getAuth(JSON.parse(localStorage.getItem('microsoft_account'))),
            options = {
                authorization: {
                    access_token: e.access_token,
                    client_token: e.client_token,
                    uuid: e.uuid,
                    name: e.name,
                    user_properties: e.user_properties
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