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71 lines
2.2 KiB
Plaintext
71 lines
2.2 KiB
Plaintext
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# Troubleshooting
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An assortment of troubleshooting tips.
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## My application is displaying a white/blank screen
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Check that your application includes the assets from the correct directory. In your `main.go` file, you will have
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something similar to the following code:
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```go
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//go:embed frontend/dist
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var assets embed.FS
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```
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Check that `frontend/dist` contains your application assets.
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## Mac application not valid
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If your built application looks like this in finder:
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<p className="text--center">
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<img src="/img/troubleshooting/invalid_mac_app.png"></img>
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</p>
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it's likely that your application's `info.plist` is invalid. Update the file in `build/<yourapp>.app/Contents/info.plist`
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and check if the data is valid, EG check the binary name is correct. To persist the changes, copy the file back to
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the `build/darwin` directory.
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## Cannot call backend method from frontend with variadic arguments
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If you have a backend method defined with variadic parameters, eg:
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```go
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func (a *App) TestFunc(msg string, args ...interface{}) error {
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// Code
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}
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```
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calling this method from the frontend like this will fail:
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```js
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var msg = "Hello: "
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var args = ["Go", "JS"]
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window.go.main.App.TestFunc(msg, ...args).then((result) => {
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//do things here
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}).catch((error) => {
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//handle error
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});
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```
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Workaround:
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```js
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var msg = "Hello "
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var args = ["Go", "JS"]
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window.go.main.App.TestFunc(msg, args).then((result) => { //without the 3 dots
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//do things here
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}).catch((error) => {
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//handle error
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});
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```
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Credit: https://github.com/wailsapp/wails/issues/1186
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## I'm having getting proxy errors when trying to install Wails
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If you are getting errors like this:
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```
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"https://proxy.golang.org/github.com/wailsapp/wails/cmd/wails/@v/list": dial tcp 172.217.163.49:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
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```
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it's probably because the official Go Proxy is being blocked (Users in China have reported this).
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The solution is to set up the proxy manually, eg:
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```
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go env -w GO111MODULE=on
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go env -w GOPROXY=https://goproxy.cn,direct
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```
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Source: https://github.com/wailsapp/wails/issues/1233 |