microg/GmsCore · error · RuntimeException

Would not sign in

Error message

Would not sign in

What it means

WebViewHelper.openWebWithAccount throws with this message when the AccountManager auth-token future fails or returns no usable result, meaning the silent web-login could not be completed for the given account.

Source

Thrown at vending-app/src/main/java/org/microg/vending/billing/ui/WebViewHelper.kt:102

    private fun addLanguageParam(url: String): String {
        val language = Locale.getDefault().language
        return if (language.isNotEmpty()) {
            Uri.parse(url).buildUpon().appendQueryParameter("hl", language).toString()
        } else {
            url
        }
    }

    private fun openWebWithAccount(account: Account, url: String) {
        try {
            val service = "weblogin:continue=" + URLEncoder.encode(url, "utf-8")
            val accountManager: AccountManager = AccountManager.get(activity)
            val future = accountManager.getAuthToken(account, service, null, null, null, null)
            val bundle = future.getResult(20, TimeUnit.SECONDS)
            val authUrl = bundle.getString(AccountManager.KEY_AUTHTOKEN)
                ?: throw RuntimeException("authUrl is null")
            if (authUrl.contains("WILL_NOT_SIGN_IN")) {
                throw RuntimeException("Would not sign in")
            }
            if (Log.isLoggable(TAG, Log.DEBUG)) Log.d(TAG, "Opening $authUrl")
            webView.post {
                if (SDK_INT >= 21) {
                    CookieManager.getInstance().removeAllCookies {
                        if (Log.isLoggable(TAG, Log.DEBUG)) Log.d(TAG, "Cookies removed")
                        loadWebViewUrl(authUrl)
                    }
                } else {
                    CookieManager.getInstance().removeAllCookie()
                    loadWebViewUrl(authUrl)
                }

            }
        } catch (e: Exception) {
            if (Log.isLoggable(TAG, Log.DEBUG)) Log.d(TAG, "Failed to get weblogin auth.", e)
            activity.finish()
        }

View on GitHub (pinned to 157c9d86ac)

Solutions

1. Ensure the account is registered and signed in before invoking the flow
2. Retry the token request or prompt the user to re-authenticate

When it happens

Trigger: Thrown at vending-app/src/main/java/org/microg/vending/billing/ui/WebViewHelper.kt:102 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of microg/GmsCore@157c9d86ac (2026-09-06). Data as JSON: /api/errors/37efec6f935f3c27. Report an issue: GitHub.